Colonography, Computed Tomographic
Radiographic Image Interpretation, Computer-Assisted
Tomography, X-Ray Computed
Sensitivity and Specificity
Radiographic Image Enhancement
Tomography Scanners, X-Ray Computed
Reproducibility of Results
Image Processing, Computer-Assisted
False Positive Reactions
Pattern Recognition, Automated
Early Detection of Cancer
Cone-Beam Computed Tomography
Magnetic Resonance Imaging
Performance of multidetector computed tomography colonography compared with conventional colonoscopy. (1/182)BACKGROUND AND AIMS: This was a prospective blinded study to compare computed tomography (CT) colonography, performed with multidetector arrays CT scan (MDCT), with conventional colonoscopy for the detection of colorectal neoplasia. METHODS: Fifty patients were examined by MDCT after standard bowel preparation and rectal air insufflation in the supine and prone positions. Data sets were examined by one radiologist and one gastroenterologist blinded to the patient's history and colonoscopy results. Patients subsequently underwent colonoscopy on the same day, which served as the gold standard. RESULTS: Nine of 11 lesions >10 mm (82%), 5/15 lesions of 6-9 mm (33%), and 1/42 polyps <5 mm (3%) were detected by MDCT colonography. One false positive result for a structure larger than 10 mm was described. Nineteen of 21 patients who had no lesions during conventional colonoscopy were considered free of lesions by MDCT colonography, yielding a per patient specificity of 90%. CONCLUSION: MDCT colonography provides good data quality and has good sensitivity and specificity for the detection of colonic lesions of 10 mm or more. (+info)
Virtual endoscopy: a promising new technology. (2/182)Growing evidence shows that early detection of cancer can substantially reduce mortality, necessitating screening programs that encourage patient compliance. Radiology is already established as a screening tool, as in mammography for breast cancer and ultrasonography for congenital anomalies. Advanced processing of helical computed tomographic data sets permits three-dimensional and virtual endoscopic models. Such models are noninvasive and require minimal patient preparation, making them ideal for screening. Virtual endoscopy has been used to evaluate the colon, bronchi, stomach, blood vessels, bladder, kidney, larynx, and paranasal sinuses. The most promising role for virtual endoscopy is in screening patients for colorectal cancer. The technique has also been used to evaluate the tracheobronchial tree for bronchogenic carcinoma. Three-dimensional and virtual endoscopy can screen, diagnose, evaluate and assist determination of surgical approach, and provide surveillance of certain malignancies. (+info)
Computer-aided detection and diagnosis at the start of the third millennium. (3/182)Computer-aided diagnosis has been under development for more than 3 decades. The rate of progress appears exponential, with either recent approval or pending approval for devices focusing on mammography, chest radiographs, and chest CT. Related technologies improve diagnosis for many other types of medical images including virtual colonography, vascular imaging, as well as automated quantitation of image-derived metrics. A variety of techniques are currently employed with success, likely reflecting the variety of imagery used, as well as the variety of tasks. Most areas of medical imaging have had efforts at computer assistance, and some have even received FDA approval and can be reimbursed. We anticipate that the rapid advance of these technologies will continue, and that application will broaden to cover much of medical imaging. Acceptance of, and integration of computer-aided diagnosis technology with the electronic radiology practice is a current challenge. These challenges will be overcome, and we expect that computer-aided diagnosis will be routinely applied to medical images. (+info)
Current and evolving strategies for colorectal cancer screening. (4/182)BACKGROUND: Colorectal cancer is a major cause of cancer mortality and morbidity. Screening can potentially prevent most colorectal cancers by detection and removal of precursor adenomas. METHODS: The literature and clinical practice guidelines are reviewed, with an emphasis on advances of the last 10 years and evolving screening methods. RESULTS: Colonoscopy has come to be used for screening in persons at average risk for colorectal cancer because of the comparative ineffectiveness of other methods, although these methods continue to be recommended. Virtual colonoscopy and fecal DNA testing are emerging technologies with promise to be more effective than fecal occult blood testing or sigmoidoscopy in selecting those persons who should undergo colonoscopy. Next to age, family history is the most common risk factor for colorectal cancer and one that warrants more aggressive screening and, in some instances, genetic counseling and testing. Hereditary nonpolyposis colorectal cancer accounts for as many as 1 in 20 colorectal cancers, but to take advantage of recent advances in genetic testing for this disorder, a high level of clinical suspicion must be maintained. CONCLUSIONS: If we are to reduce mortality and morbidity from colorectal cancer, practicing clinicians need to be aware of current and evolving strategies for colorectal screening, and assertively recommend the appropriate strategy to their patients. (+info)
Chemotherapy and surgery: new perspectives on the treatment of unresectable liver metastases. (5/182)Liver metastases concern half of patients with colorectal cancer, and are frequently unresectable, jeopardizing patient outcome. Owing to increased efficacy, chemotherapy can render initially inoperable patients amenable to potentially curative resection. The 34% 5-year and 20% 10-year survival of patients resected following neoadjuvant chronomodulated chemotherapy with 5-fluorouracil, folinic acid and oxaliplatin is similar to that of patients whose disease was operable at diagnosis. Recently, a group of 16 patients were treated with irinotecan and became resectable after treatment. Their survival (56% at 3 years) matches that of patients treated with other forms of chemotherapy. The poor prognosis of patients with non-resectable hepatic metastases might now be improved by the combination of chemotherapy and surgery. (+info)
Extracolonic findings at computed tomography colonography are a challenge. (6/182)AIM: Our aim was to perform a prospective evaluation of the frequency and diagnostic consequences of extracolonic findings at multidetector array computed tomography colonography (MDCTC) in asymptomatic patients undergoing surveillance for former colorectal polyps or cancer. PATIENTS AND METHODS: Seventy five consecutive patients undergoing surveillance for former colorectal cancer (CRC) or large bowel adenoma were examined with MDCTC. Two independent observers evaluated the images with regard to extracolonic findings. Patient records and radiological information systems were reviewed to determine the results and consequences of the workup derived from MDCTC. RESULTS: Sixty five per cent (95% confidence interval (CI) 55-73%) of patients had extracolonic abnormalities and in 12% (CI 7-18%) of patients additional workup was indicated. Two patients (3% (CI 1-6%)) underwent surgery because of the findings (one) or because of complications of the workup (one). CONCLUSION: MDCTC identifies a large number of extracolonic findings. Approximately 12% of asymptomatic patients undergo additional workup, of benefit to only a few. The high prevalence of extracolonic findings may make MDCTC a problematic colorectal screening tool for both ethical and economic reasons. (+info)
Computed tomographic virtual colonoscopy to screen for colorectal neoplasia in asymptomatic adults. (7/182)BACKGROUND: We evaluated the performance characteristics of computed tomographic (CT) virtual colonoscopy for the detection of colorectal neoplasia in an average-risk screening population. METHODS: A total of 1233 asymptomatic adults (mean age, 57.8 years) underwent same-day virtual and optical colonoscopy. Radiologists used the three-dimensional endoluminal display for the initial detection of polyps on CT virtual colonoscopy. For the initial examination of each colonic segment, the colonoscopists were unaware of the findings on virtual colonoscopy, which were revealed to them before any subsequent reexamination. The sensitivity and specificity of virtual colonoscopy and the sensitivity of optical colonoscopy were calculated with the use of the findings of the final, unblinded optical colonoscopy as the reference standard. RESULTS: The sensitivity of virtual colonoscopy for adenomatous polyps was 93.8 percent for polyps at least 10 mm in diameter, 93.9 percent for polyps at least 8 mm in diameter, and 88.7 percent for polyps at least 6 mm in diameter. The sensitivity of optical colonoscopy for adenomatous polyps was 87.5 percent, 91.5 percent, and 92.3 percent for the three sizes of polyps, respectively. The specificity of virtual colonoscopy for adenomatous polyps was 96.0 percent for polyps at least 10 mm in diameter, 92.2 percent for polyps at least 8 mm in diameter, and 79.6 percent for polyps at least 6 mm in diameter. Two polyps were malignant; both were detected on virtual colonoscopy, and one of them was missed on optical colonoscopy before the results on virtual colonoscopy were revealed. CONCLUSIONS: CT virtual colonoscopy with the use of a three-dimensional approach is an accurate screening method for the detection of colorectal neoplasia in asymptomatic average-risk adults and compares favorably with optical colonoscopy in terms of the detection of clinically relevant lesions. (+info)
Postprocessing techniques of CT colonography in detection of colorectal carcinoma. (8/182)AIM: To evaluate the value of postprocessing techniques of CT colonography, including multiplanar reformation (MPR), virtual colonoscopy (VC), shaded surface display (SSD) and Raysum, in detection of colorectal carcinomas. METHODS: Sixty-four patients with colorectal carcinoma underwent volume scanning with spiral CT. MPR, VC, SSD and Raysum images were obtained by using four kinds of postprocessing techniques in workstation. The results were comparatively analyzed according to circumferential extent, lesion length and pathology pattern of colorectal carcinomas. All diagnoses were proved pathologically and surgically. RESULTS: The accuracy of circumferential extent of colorectal carcinoma determined by MPR, VC, SSD and Raysum was 100.0%, 82.8%, 79.7% and 79.7%, respectively. There was a significant statistical difference between MPR and VC. The consistent rate of lesion length was 89.1%, 76.6%, 95.3% and 100.0%, respectively. There was a statistical difference between VC and SSD. The accuracy of discriminating pathology pattern was 81.3%, 92.2%, 71.9% and 71.9%, respectively. There was a statistical difference between VC and SSD. MPR could determine accurately the circumference of colorectal carcinoma, Raysum could determine the length of lesion more precisely than SSD, VC was helpful in discriminating pathology patterns. CONCLUSION: MPR, VC, SSD and Raysum have advantage and disadvantage in detection of colorectal carcinoma, use of these methods in combination can disclose the lesion more accurately. (+info)
The exact cause of colonic polyps is not fully understood, but they are thought to be related to inflammation, genetic mutations, and abnormal cell growth. Some risk factors for developing colonic polyps include:
1. Age (they become more common with age)
2. Family history of colon cancer or polyps
3. Inflammatory bowel disease (such as ulcerative colitis or Crohn's disease)
4. Previous history of colon cancer or polyps
5. A diet high in fat and low in fiber
7. Lack of physical activity
There are several types of colonic polyps, including:
1. Adenomatous polyps: These are the most common type of polyp and have the potential to become malignant (cancerous) over time if left untreated.
2. Hyperplastic polyps: These are benign growths that are usually small and have a smooth surface.
3. Inflammatory polyps: These are associated with inflammation in the colon and are usually benign.
4. Villous adenomas: These are precancerous growths that can develop into colon cancer if left untreated.
Colonic polyps do not always cause symptoms, but they can sometimes cause:
1. Blood in the stool
2. Changes in bowel movements (such as diarrhea or constipation)
3. Abdominal pain or discomfort
4. Weakness and fatigue
If colonic polyps are suspected, a doctor may perform several tests to confirm the diagnosis, including:
1. Colonoscopy: A flexible tube with a camera and light on the end is inserted through the rectum and into the colon to visualize the inside of the colon and look for polyps.
2. Fecal occult blood test (FOBT): This test detects small amounts of blood in the stool.
3. Barium enema: A barium solution is inserted into the rectum and x-rays are taken to visualize the inside of the colon.
4. CT colonography (virtual colonoscopy): This test uses a CT scan to create detailed images of the colon and detect polyps.
If colonic polyps are found, they may be removed during a colonoscopy procedure. The type of treatment will depend on the size, location, and number of polyps, as well as the patient's overall health. Polyps that are small and few in number may be removed by snare polypectomy, where a thin wire loop is used to remove the polyp. Larger polyps or those that are more numerous may require surgical removal of a portion of the colon.
It is important for individuals to be screened for colonic polyps regularly, as they can potentially develop into colon cancer if left untreated. The American Cancer Society recommends that individuals with an average risk of colon cancer begin screening at age 50 and continue every 5 years until age 75. Individuals with a higher risk, such as those with a family history of colon cancer or a personal history of inflammatory bowel disease, may need to begin screening earlier and more frequently.
The causes of colorectal neoplasms are not fully understood, but factors such as age, genetics, diet, and lifestyle have been implicated. Symptoms of colorectal cancer can include changes in bowel habits, blood in the stool, abdominal pain, and weight loss. Screening for colorectal cancer is recommended for adults over the age of 50, as it can help detect early-stage tumors and improve survival rates.
There are several subtypes of colorectal neoplasms, including adenomas (which are precancerous polyps), carcinomas (which are malignant tumors), and lymphomas (which are cancers of the immune system). Treatment options for colorectal cancer depend on the stage and location of the tumor, but may include surgery, chemotherapy, radiation therapy, or a combination of these.
Research into the causes and treatment of colorectal neoplasms is ongoing, and there has been significant progress in recent years. Advances in screening and treatment have improved survival rates for patients with colorectal cancer, and there is hope that continued research will lead to even more effective treatments in the future.
1. Ulcerative colitis: This is a chronic condition that causes inflammation and ulcers in the colon. Symptoms can include abdominal pain, diarrhea, and rectal bleeding.
2. Crohn's disease: This is a chronic condition that affects the digestive tract, including the colon. Symptoms can include abdominal pain, diarrhea, fatigue, and weight loss.
3. Irritable bowel syndrome (IBS): This is a common condition characterized by recurring abdominal pain, bloating, and changes in bowel movements.
4. Diverticulitis: This is a condition where small pouches form in the colon and become inflamed. Symptoms can include fever, abdominal pain, and changes in bowel movements.
5. Colon cancer: This is a type of cancer that affects the colon. Symptoms can include blood in the stool, changes in bowel movements, and abdominal pain.
6. Inflammatory bowel disease (IBD): This is a group of chronic conditions that cause inflammation in the digestive tract, including the colon. Symptoms can include abdominal pain, diarrhea, fatigue, and weight loss.
7. Rectal cancer: This is a type of cancer that affects the rectum, which is the final portion of the colon. Symptoms can include blood in the stool, changes in bowel movements, and abdominal pain.
8. Anal fissures: These are small tears in the skin around the anus that can cause pain and bleeding.
9. Rectal prolapse: This is a condition where the rectum protrudes through the anus. Symptoms can include rectal bleeding, pain during bowel movements, and a feeling of fullness or pressure in the rectal area.
10. Hemorrhoids: These are swollen veins in the rectum or anus that can cause pain, itching, and bleeding.
It's important to note that some of these conditions can be caused by other factors as well, so if you're experiencing any of these symptoms, it's important to see a doctor for an accurate diagnosis and treatment.
There are many different types of polyps that can occur in various parts of the body, including:
1. Colon polyps: These are the most common type of polyp and typically occur in the colon or rectum. They are usually small and can be removed during a colonoscopy.
2. Thyroid polyps: These occur in the thyroid gland and are often benign. However, some can become cancerous if left untreated.
3. Nasal polyps: These occur in the nasal passages and are often associated with chronic sinusitis.
4. Ovarian polyps: These occur on the ovaries and are typically benign.
5. Uterine polyps: These occur in the uterus and are usually benign, but can occasionally become cancerous.
Polyps are often asymptomatic, meaning they do not cause any noticeable symptoms. However, some people may experience symptoms such as bleeding, abdominal pain, or difficulty swallowing if the polyp is large enough to interfere with normal bodily functions.
If you suspect you have a polyp, it is important to seek medical attention. Your healthcare provider will perform a physical examination and may order imaging tests such as an endoscopy or a CT scan to confirm the presence of the polyp. Treatment options for polyps depend on the type, size, and location of the polyp, as well as your overall health. Some polyps can be removed during an endoscopy or surgery, while others may require no treatment at all.
In summary, polyps are abnormal growths that can occur in various parts of the body. They are typically benign but can occasionally become cancerous if left untreated. If you suspect you have a polyp, it is important to seek medical attention for proper diagnosis and treatment.
Adenomatous polyps are made up of glandular and epithelial cells, which are the same types of cells found in the lining of the intestine. They can be flat or raised and may be small or large in size. These growths usually do not cause any symptoms, but they can bleed if they become inflamed or irritated.
Adenomatous polyps are a significant concern because they have the potential to develop into colorectal cancer, which is one of the most common types of cancer in the United States. In fact, studies suggest that up to 75% of all colorectal cancers may start as adenomatous polyps.
If you have been diagnosed with an adenomatous polyp, your healthcare provider will likely recommend that you undergo regular monitoring and screening to ensure that any new growths are caught early and removed before they become cancerous. This may include colonoscopies, flexible sigmoidoscopy, or other imaging tests.
In some cases, your healthcare provider may also recommend removing the adenomatous polyp surgically. This is typically done during a colonoscopy or other endoscopic procedure. The removed tissue will then be examined under a microscope to ensure that all cancerous cells have been removed.
Overall, while adenomatous polyps are not cancerous, they are a significant concern because of their potential to develop into colorectal cancer over time. Therefore, it is important to follow your healthcare provider's recommendations for monitoring and treatment to ensure the best possible outcomes.
The term "infarction" is derived from the Latin words "in" meaning "into" and "farcire" meaning "to stuff", which refers to the idea that the tissue becomes "stuffed" with blood, leading to cell death and necrosis.
Infarction can be caused by a variety of factors, including atherosclerosis (the buildup of plaque in the blood vessels), embolism (a blood clot or other foreign material that blocks the flow of blood), and vasospasm (constriction of the blood vessels).
The symptoms of infarction vary depending on the location and severity of the blockage, but can include chest pain or discomfort, shortness of breath, numbness or weakness in the affected limbs, and confusion or difficulty speaking or understanding speech.
Diagnosis of infarction typically involves imaging tests such as electrocardiograms (ECGs), echocardiograms, or computerized tomography (CT) scans to confirm the presence of a blockage and assess the extent of the damage. Treatment options for infarction include medications to dissolve blood clots, surgery to restore blood flow, and other interventions to manage symptoms and prevent complications.
Prevention of infarction involves managing risk factors such as high blood pressure, high cholesterol, smoking, and obesity, as well as maintaining a healthy diet and exercise routine. Early detection and treatment of blockages can help reduce the risk of infarction and minimize the damage to affected tissues.
Quantitative computed tomography
List of MeSH codes (H01)
Index of oncology articles
List of MeSH codes (E01)
Spectral imaging (radiography)
Determination of the positional relationship of the second Houston valve and peritoneal reflection using computed tomographic...
Search Strategy Used to Create the PubMed Cancer Filter
Virtual colonoscopy: MedlinePlus Medical Encyclopedia
Colon Polyp Imaging: Practice Essentials, Radiography, Computed Tomography
NIH VideoCast - Contemporary Clinical Medicine: Great Teachers: Colon Cancer Screening: Evolution Toward Eradication
Computed tomographic virtual colonoscopy computer-aided polyp detection in a screening population - PubMed
Clinical practice. Screening for colorectal cancer - PubMed
Research Festival | Intramural Research Program | National Institutes of Health
Richard Moser | Profiles RNS
CodeMap® CodeMap® Contractor Policy Detail
Portal Regional da BVS
Cancer Intervention and Surveillance Modeling Network (CISNET)
Find Research outputs - Augusta University Research Profiles
Ronald M. Summers, MD, PhD | Clinical Center
Ronald M. Summers, MD, PhD | Clinical Center
SP9.1.3 Colorectal Cancer Referrals During COVID-19: The Use of CT and qFIT in Triaging Patients in NHS Grampian<...
eCQI Resource Center
Enterovesical Fistula: Practice Essentials, History of the Procedure, Problem
How is Cancer Diagnosed? - HealthXchange
Binary option jelly roll morton musician quotes on love
DeCS 2011 - December 22, 2011 version
CDC Science Clips
NEW (2002) MESH HEADINGS WITH SCOPE NOTES (UNIT RECORD FORMAT; 8/27/2001
- Efforts are underway to find all polyps 5-10 mm in diameter using computed tomography (CT) scanning or magnetic resonance imaging (MRI). (medscape.com)
- 31. Diagnostic performance of primary 3-dimensional computed tomography colonography in the setting of colonic diverticular disease. (nih.gov)
- Resultantly, computed tomography abdomen pelvis (CTAP) scans were utilised to triage patients. (elsevier.com)
- Computed tomography (CT) is a medical imaging method employing tomography . (wikidoc.org)
- Computed tomography was originally known as the "EMI scan" as it was developed at a research branch of EMI , a company best known today for its music and recording business. (wikidoc.org)
- It was later known as computed axial tomography (CAT or CT scan) and body section roentgenography . (wikidoc.org)
- There are several colorectal screening options for average-risk individuals to detect colonic polyps, including colonoscopy every 10 years, flexible sigmoidoscopy every 5 years, double-contrast barium enema every 5 years, CT colonography every 5 years, and annual fecal occult blood testing. (medscape.com)
- 23. CT colonography of colorectal polyps: a metaanalysis. (nih.gov)
- 25. Colorectal polyps: detection with dark-lumen MR colonography versus conventional colonoscopy. (nih.gov)
- 26. [Application of CT colonography in diagnosis of colonic polyps]. (nih.gov)
- 27. Diagnostic accuracy of laxative-free computed tomographic colonography for detection of adenomatous polyps in asymptomatic adults: a prospective evaluation. (nih.gov)
- 33. Finding polyps at colonoscopy previously noted on CT colonography. (nih.gov)
- 34. Computed tomographic colonography (CTC): Possibilities and limitations of clinical application in colorectal polyps and cancer. (nih.gov)
- 39. Computer-aided detection of colonic polyps at CT colonography using a Hessian matrix-based algorithm: preliminary study. (nih.gov)
- The sensitivity of computed tomographic (CT) virtual colonoscopy (CT colonography) for detecting polyps varies widely in recently reported large clinical trials. (nih.gov)
- Computed tomographic colonography (CTC) is a minimally invasive technique for colonic polyps and cancer screening. (nih.gov)
- Segmentation and Size Measurement of Polyps in CT Colonography. (sigmod.org)
- Patients were vetted into one of five pathways: CTAP, direct to colonoscopy, downgraded from assessment, flexible sigmoidoscopy, or CT colonography. (elsevier.com)
- 21. Performance of a previously validated CT colonography computer-aided detection system in a new patient population. (nih.gov)
- 22. Colorectal neoplasms: prospective comparison of thin-section low-dose multi-detector row CT colonography and conventional colonoscopy for detection. (nih.gov)
- 24. Detection of colorectal lesions: lower-dose multi-detector row helical CT colonography compared with conventional colonoscopy. (nih.gov)
- 37. [MR-colonography in hospitalized patients: feasibility and sensitivity]. (nih.gov)
- Emerging indications for CT colonography may include evaluation of patients with sigmoid colonic stoma and those affected by deep pelvic endometriosis and could be useful in chronic diverticular disease to differentiate between inflammatory and neoplastic stenoses. (medscape.com)
- It addresses the clinical indications for the use of computed tomographic colonography (CTC). (bvsalud.org)
- Low-dose CT colonography in children: initial experience, technical feasibility, and utility. (wakehealth.edu)
- Determination of the positional relationship of the second Houston valve and peritoneal reflection using computed tomographic colonography and magnetic resonance imaging. (bvsalud.org)
- The second Houston valve and peritoneal reflection positions were assessed using tomographic colonography and magnetic resonance imaging . (bvsalud.org)
- Computed tomographic colonography (CTC), also known as virtual colonoscopy, has been reported to be reasonably accurate in the diagnosis of colorectal neoplasia in studies performed at expert centers. (nih.gov)
- [ 11 , 12 ] These modalities are employed in the evolving techniques for so-called computed colonography (also called virtual colonography or virtual colonoscopy) examinations. (medscape.com)
- Computed tomographic (CT) colonography, also known as 'virtual colonoscopy', is an imaging technique of the colon involving multi-slice CT and computer software to generate high-resolution 2-dimensional and 3-dimensional images of the inner surface of the colon. (healthxchange.sg)
- Iwo Serlie , Roel Truyen , Jasper Florie , Frits H. Post , Lucas J. van Vliet , Frans Vos: Computed Cleansing for Virtual Colonoscopy Using a Three-Material Transition Model. (sigmod.org)
- Computed tomographic colonography: What results should we believe? (elsevierpure.com)
- A non-invasive imaging method that uses computed tomographic data combined with specialized imaging software to examine the colon. (nih.gov)
- Halligan argues that CT colonography (CTC) to investigate patients with symptoms potentially suggestive of colorectal cancer should replace barium enema, because CTC is a sensitive, acceptable, and equally cost-effective alternative to colonoscopy in patients in whom colonoscopy is contraindicated or undesirable. (medscape.com)
- 38. [A prospective comparison of video colonoscopy and CT colonography in asymptomatic patients screened for colorectal cancer]. (nih.gov)
- 30. CT colonography with limited bowel preparation: performance characteristics in an increased-risk population. (nih.gov)
- The impact of computed colonography on health-care costs depends on the component costs and the percentage of patients that go on to intervention. (medscape.com)
- Tagging-based, electronically cleansed CT colonography: evaluation of patient comfort and image readability. (wakehealth.edu)
- Polyp size at CT colonography after electronic subtraction cleansing in an anthropomorphic colon phantom. (wakehealth.edu)
- The medical name of this test is CT colonography. (medlineplus.gov)
- 35. Cost-effectiveness of computed tomographic colonography: a prospective comparison with colonoscopy. (nih.gov)
-  The first production X-ray CT machine (in fact called the "EMI-Scanner") was limited to making tomographic sections of the brain, but acquired the image data in about 4 minutes (scanning two adjacent slices) and the computation time (using a Data General Nova minicomputer) was about 7 minutes per picture. (wikidoc.org)
- 6. Diagnostic value of computed tomography colonography (CTC) after incomplete optical colonoscopy. (nih.gov)
- 10. CT-colonography after incomplete colonoscopy: what is the diagnostic yield? (nih.gov)
- The sensitivity of computed tomographic (CT) virtual colonoscopy (CT colonography) for detecting polyps varies widely in recently reported large clinical trials. (nih.gov)
- CT colonography : progress beyond the Department of Defense screening trial / Perry J. Pickhardt. (nih.gov)
- 8. Potentially Important Extracolonic Findings at Screening CT Colonography: Incidence and Outcomes Data From a Clinical Screening Program. (nih.gov)
- 11. Computed tomographic colonography: prevalence, nature, and clinical significance of extracolonic findings in a community screening program. (nih.gov)
- 13. Five year colorectal cancer outcomes in a large negative CT colonography screening cohort. (nih.gov)
- 15. Extracolonic findings on CT colonography increases yield of colorectal cancer screening. (nih.gov)
- 16. CT Colonography Reporting and Data System (C-RADS): benchmark values from a clinical screening program. (nih.gov)
- 19. Screening CT colonography in an asymptomatic average-risk Asian population: a 2-year experience in a single institution. (nih.gov)
- 20. Comparison of extracolonic findings and clinical outcomes in a screening and diagnostic CT colonography population. (nih.gov)
- 17. CT colonography in senior versus nonsenior patients: extracolonic findings, recommendations for additional imaging, and polyp prevalence. (nih.gov)
- FIT-DNA), 4) computed tomographic colonography (CTC), from the analysis. (cdc.gov)
- 2. CT colonography of a Medicare-aged population: outcomes observed in an analysis of more than 1400 patients. (nih.gov)
- 5. Computed tomographic colonography (CTC): a retrospective analysis of a single site experience and a review of the literature on the status of CTC. (nih.gov)
- 7. Computed tomographic colonography to screen for colorectal cancer, extracolonic cancer, and aortic aneurysm: model simulation with cost-effectiveness analysis. (nih.gov)
- A non-invasive imaging method that uses computed tomographic data combined with specialized imaging software to examine the colon. (bvsalud.org)
- Computed tomographic colonography with the step-clipping method detects a previously bleeding diverticulum. (bvsalud.org)
- 1. Computed tomographic colonography: colonic and extracolonic findings in an Auckland population. (nih.gov)