SpecificityPositron emission tAngiographyMultidetector computed tScanUltrasonographyMDCTScintigraphyPerfusionModalitiesTomographicCoronaryNoninvasiveHelicalMagnetic resonanceTriphasicBiopsyDetectionDiagnostic accuracyHigher sensitivityUltrasoundContrast-enhancedParametersModalityScansAnalysesLungConeUndertakenImageAssessProportionBenignInvestigateDiagnosisDataBeamStableIntroductionNegativeTechniques
Specificity15
- Thus optimal screening modalities have both high sensitivity and specificity. (columbia.edu)
- There is evidence in published reports that computer-aided diagnosis technology may help radiologists alter the benefit-cost calculus of CT sensitivity and specificity in lung cancer screening protocols. (columbia.edu)
- Blood flow, blood transit time, and organ blood volume, can all be calculated with reasonable sensitivity and specificity. (wikipedia.org)
- This type of CT may be used on the heart, although sensitivity and specificity for detecting abnormalities are still lower than for other forms of CT. (wikipedia.org)
- The sensitivity and specificity of CT in identifying these tumours were 87% (95% CI, 74-94) and 49% (95% CI, 33-65). (ox.ac.uk)
- Sensitivity and specificity for tumour infiltration beyond the MP (T3/T4 vs T1/T2) were 95% (95% CI, 87-98) and 50% (95% CI, 22-77), respectively. (ox.ac.uk)
- Sensitivity, specificity, positive predictive value, negative predictive value and diagnostic accuracy of triphasic CT scan were calculated. (aku.edu)
- Based on these results, it could be assessed that triphasic CT Scan has a sensitivity of 100%, specificity of 80%, positive predictive value of 94.5%, negative predictive value of 100% and diagnostic accuracy of 95.5% in differentiating benign from malignant liver lesions. (aku.edu)
- Recent studies of CT coronary angiography describe a sensitivity of up to 98% and a specificity of up to 91% over all coronary segments. (ecrjournal.com)
- Ultrasonography is noninvasive and has high sensitivity and specificity. (medscape.com)
- However, they are incapable of achieving both high sensitivity and specificity simultaneously. (biomedcentral.com)
- The sensitivity, specificity and AUC of the ER based model are 88.41%, 77.57% and 0.813, respectively. (biomedcentral.com)
- CLO_mean: specificity=70.00%, sensitivity= 76.92%, and AUC=0.746. (eurekaselect.com)
- Results of numerous studies have suggested that CTA has high sensitivity and specificity for the detection of intracranial aneurysms. (ajnr.org)
- The published literature on V/Q SPECT has consistently shown improvements in sensitivity ( 2 , 3 ), specificity ( 3 , 4 ), and intraobserver reproducibility ( 2 - 4 ), as well as reducing the number of intermediate or inconclusive results to less than 5% ( 3 , 5 ). (snmjournals.org)
Positron emission t10
- Positron emission tomography-computed tomography is a hybrid CT modality which combines, in a single gantry, a positron emission tomography (PET) scanner and an x-ray computed tomography (CT) scanner, to acquire sequential images from both devices in the same session, which are combined into a single superposed (co-registered) image. (wikipedia.org)
- To investigate the clinical benefits of F18-fluorodeoxyglucose-positron emission tomography and computed tomography (18F-FDG-PET/CT) over multi-detector row CT (MDCT) in preoperative staging of gastric cancer. (koreamed.org)
- Miaximum intensity projection image of (A) positron emission tomography (PET) and (B) axial PET scan demonstrate focal hypermetabolic lesion in gastric antrum (black arrow) with maximum standardized uptake value (SUVmax) of 4.3. (koreamed.org)
- Does Positron Emission Tomography-Computed Tomography Maximum Standardized Uptake Value Predict Survival in Surgically Resected Gastric Cancer? (koreamed.org)
- Staging of non-small-cell lung cancer with integrated positron-emission tomography and computed tomography. (koreamed.org)
- Noninvasive tests, such as fluorodeoxyglucose positron emission tomography or dynamic CT with nodule enhancement, cannot distinguish benign disease from malignant disease with sufficient accuracy [ 2 ]. (ersjournals.com)
- This paper aimed to review the literature regarding the application of positron emission tomography in head and neck cancer, including its impact in the diagnosis, image principles, radiotracers, positron emission tomography / computed tomography image fusion and other advantages. (bvsalud.org)
- It could be observed that the use of positron emission tomography improves the diagnostic approach of the patients, especially when positron emission tomography is allied to computed tomography. (bvsalud.org)
- As it provides physiological information, positron emission tomography also benefits the prognostic and reduces the morbidity related to the treatment of head and neck cancer. (bvsalud.org)
- Positron-emission tomography. (bvsalud.org)
Angiography6
- Coronary computed tomography angiography (CCTA) is a noninvasive method to image the coronary arteries. (medscape.com)
- [10] Introduction of computed tomographic pulmonary angiography may have led to overdiagnosis of pulmonary embolism]. (citizendium.org)
- Computed tomography (CT) pulmonary angiography is highly specific for pulmonary embolism. (bmj.com)
- Computed tomographic angiography (CTA) and magnetic resonance angiography (MRA) are routinely utilized nowadays in clinical practice. (hindawi.com)
- OCTA combines all of the desirable features of optical coherence tomography and brings them to the field of angiography. (azooptics.com)
- The guideline will provide a review of diagnostic modalities for patients with small bowel hemorrhage including VCE, endoscopic evaluation with push and/or deep enteroscopy, and radiographic modalities including cross-sectional imaging (computed tomography (CT) and magnetic resonance (MR)) enterography, angiography, and scintigraphy. (medscape.com)
Multidetector computed t3
- The purpose of this study was to assess the diagnostic performance of multidetector computed tomography (MDCT) in the detection of hepatocellular carcinoma (HCC) in cirrhotic patients who are recommended for liver transplantation according to the Milan criteria. (eg.net)
- Multidetector computed tomography (MDCT) is currently considered one of the most reliable techniques for evaluating hepatic cancer in the presence of cirrhotic liver disease, and it is primarily involved in patient treatment strategies [4] . (eg.net)
- There are 175 consecutive patients who went through multidetector computed tomography (MDCT) consecutively before the surgery. (biomedcentral.com)
Scan9
- formerly called computed axial tomography scan or CAT scan) is a medical imaging technique used to obtain detailed internal images of the body. (wikipedia.org)
- This may also be used on the brain, where CT perfusion imaging can often detect poor brain perfusion well before it is detected using a conventional spiral CT scan. (wikipedia.org)
- Computed tomography, also called CT scan, CAT scan , or computerized axial tomography, is a combination of focused x-ray beams and computerized production of an image. (encyclopedia.com)
- Triphasic computed tomography (CT) scan in focal tumoral liver lesions" by Saima Hafeez, Muhammad Shahbaz Alam et al. (aku.edu)
- The results suggest that an optimised cycloidal-spiral data acquisition and analysis scheme enables high-quality μ-CT images to be reconstructed with a spatial resolution which is isotropic and better than that achieved with rotation-only scans (Fig. 2), while also being fully fly scan compatible and therefore time-efficient. (cern.ch)
- The outcome measures included VTE (deep venous thrombosis (DVT) or pulmonary embolism (PE)) as assessed by objective means (venography, ultrasonography, pulmonary ventilation/perfusion scintigraphy, spiral computed tomography (CT) scan or autopsy). (umn.edu)
- To evaluate the spiral chest computed tomography (CT) scan findings in patients with multipletrauma during the COVID-19 pandemic. (magiran.com)
- Patients undergo computed tomography (CT) scan, magnetic resonance imaging (MRI), tumor biopsy and blood sample collection throughout the study. (ucbraid.org)
- a) Contrast-enhanced computed tomography scan axial image at the region of the pelvis showed a large heterogeneous enhancing mass occupying the uterus and protruding into the upper vagina (arrows). (cytojournal.com)
Ultrasonography1
- The imaging techniques used are computed tomography (CT), MRI, and ultrasonography [2] , [3] . (eg.net)
MDCT2
- MDCT has reasonable sensitivity and high diagnostic accuracy in the detection of HCC in cirrhotic patients indicated for liver transplantation according to the Milan criteria. (eg.net)
- Regarding detection of lymph node metastasis, the sensitivity of FDG-PET/CT was 51.5% with an accuracy of 71.8%, whereas those of MDCT were 69.7% and 69.2%, respectively. (koreamed.org)
Scintigraphy1
- We would suggest the suboptimal sensitivity of CTPA is another reason why V/Q scintigraphy (using SPECT) should be used preferentially in most patients. (snmjournals.org)
Perfusion2
- The aim of this study was to determine the value of computed tomography perfusion (CTP) parameters, including cerebral blood flow (CBF), cerebral blood volume (CBV), mean transit time (MTT) and time-to-peak (TP), in a clinical study of patients with stroke. (spandidos-publications.com)
- Brain computed tomography perfusion imaging (CTPI) is also performed for continuous dynamic scanning of the layer in the region of interest (ROI) within a certain time after the intravenous injection of the contrast agent. (spandidos-publications.com)
Modalities1
- Computed tomography modalities which use a cone or pyramid-shaped beam of radiation. (lookformedical.com)
Tomographic1
- Computed tomographic enterography should be performed in patients with suspected obstruction before VCE or after negative VCE examinations. (medscape.com)
Coronary1
- Several studies noted an association between coronary calcification and thoracic aorta calcification by several imaging techniques, but this association has not yet been examined in stable angina pectoris patients with the use of spiral computed tomography. (ima.org.il)
Noninvasive1
- To investigate whether double helical computerized tomography- both with and without contrast injection - may represent a useful technique for noninvasive detection of PAA in stroke patients. (ima.org.il)
Helical2
- Spinning tube, commonly called spiral CT, or helical CT, is an imaging technique in which an entire X-ray tube is spun around the central axis of the area being scanned. (wikipedia.org)
- Soon after their introduction in the late 1980s, slip ring scanners and helical (spiral) CT were rapidly adopted and soon became the de facto standard of care for body CT. (snmjournals.org)
Magnetic resonance3
- Computed tomography (CT), with its inferior soft tissue contrast, compared to magnetic resonance imaging (MRI) or transrectal ultrasound (TRUS) is not considered the primary imaging method when examining the prostate. (ispub.com)
- Computed tomography (CT) scanning and magnetic resonance imaging (MRI) are making inroads, but diagnostic features are seen in only a minority of patients, although the cross-sectional images are superior and are vital in planning intervention. (medscape.com)
- Currently, doctors diagnose LNM empirically based on the size of lymph nodes which relies on various imaging methods, such as endoscopic ultrasound (EUS), abdominal ultrasound, multi-slice spiral computerized tomography (CT), Magnetic Resonance Imaging (MRI) and Positron Emission computed Tomography (PET). (biomedcentral.com)
Triphasic2
- Potential recipients with focal lesion on their ultrasound underwent triphasic computed tomography. (eg.net)
- OBJECTIVE: To assess the diagnostic accuracy of triphasic spiral CT in differentiating benign from malignant focal tumoral liver lesions. (aku.edu)
Biopsy1
- Decision-tree analysis was applied to compare downstream costs of endobronchial ultrasound-guided transbronchial lung biopsy (EBUS-TBLB) with computed tomography-guided percutaneous needle biopsy (CT-PNB). (ersjournals.com)
Detection5
- To determine the predictability of an aberrant hepatic artery by detection of a vessel in the portocaval space or fissure for the ligamentum venosum, as seen on arterial-phase spiral CT images. (koreamed.org)
- The detection on arterial-phase spiral CT images of a vessel in the portocaval space or fissure for the ligamentum venosum can reliably predict the existence of an aberrant hepatic artery. (koreamed.org)
- The introduction of 3 T magnetic field further increased MRA's sensitivity, allowing detection of aneurysms smaller than 3 mm. (hindawi.com)
- In such cases, the ability of CTPA to detect other diseases may be at the expense of a lower overall sensitivity in the detection of PE. (snmjournals.org)
- CONCLUSION: CTA has a higher sensitivity and positive predictive value than MRA and is recommended over TOF MRA for detection of intracranial stenosis and occlusion. (arizona.edu)
Diagnostic accuracy2
- However, its sensitivity and diagnostic accuracy were initially inadequate. (hindawi.com)
- As with other areas of nuclear medicine, the transition from planar techniques to SPECT has led to improvements in sensitivity and diagnostic accuracy. (snmjournals.org)
Higher sensitivity1
- In 2001, Bégin and Christman 10 highlighted the need for an objective and independent measurement of disease activity, such as HRCT, but emphasised that computed tomography (CT) scanning was not yet a "gold standard", despite its higher sensitivity compared with CXR, due to the absence of clearly established exposure-response relationships. (ersjournals.com)
Ultrasound1
- So patients with suspect findings on digital examination or ultrasound may have the need for further imaging with computed tomography. (ispub.com)
Contrast-enhanced1
- A contrast-enhanced computed tomography was done, which showed a mass occupying the uterus and part of the mass is protruding into the upper vagina. (cytojournal.com)
Parameters2
- The aim of this study was to describe the most relevant parameters of asbestos exposure linked to pleural plaques and asbestosis diagnosed by high-resolution computed tomography (HRCT). (ersjournals.com)
- CT-PNB remained the more cost-effective procedure at base-case parameters, although thresholds were identified during sensitivity analysis where EBUS-TBLB became more cost-effective. (ersjournals.com)
Modality1
- The use of computed tomography colonography or virtual colonography (VC) is gaining acceptance as a screening modality for colon cancer . (omicsonline.org)
Scans2
- Computed tomography (CT) scans are completed with the use of a 360-degree x-ray beam and computer production of images. (encyclopedia.com)
- Axial spiral CT scans (10mm section thickness, 10mm table feed) were obtained in 100 patients with hepatic mass and were examined by two radiologists. (koreamed.org)
Analyses2
- Sensitivity analyses were also performed with unpublished studies excluded, and with study participants limited to those undergoing solely open and not laparoscopic surgery. (umn.edu)
- Sensitivity analyses and probabilistic sensitivity analysis were undertaken to identify the more cost-beneficial approach for varying input parameter values. (ersjournals.com)
Lung2
- The development of low-dose spiral computed tomography (CT) has rekindled hope that effective lung cancer screening might yet be found. (columbia.edu)
- To review the evidence on screening for lung cancer with low-dose computed tomography (LDCT) to inform the US Preventive Services Task Force (USPSTF). (uspreventiveservicestaskforce.org)
Cone1
- In this paper, we describe how to make these computationally demanding algorithms feasible in connection with high-resolution, cone-beam x-ray computed tomography (micro-CT) for small animals. (iospress.com)
Undertaken1
- AIM: A pilot study was undertaken to determine the accuracy of computed tomography (CT) staging in identifying patients with high-risk colon cancers who would be considered as candidates for a neoadjuvant therapy trial (FOxTROT) and those at low risk (T1/T2) who would be excluded. (ox.ac.uk)
Image2
- The 2D beam structuring provides refraction sensitivity in two orthogonal directions, which reduces inherent image artefacts associated with phase integration. (cern.ch)
- Tomography using x-ray transmission and a computer algorithm to reconstruct the image. (lookformedical.com)
Assess1
- To assess whether circulating tumor deoxyribonucleic acid (DNA) in plasma can be used as an indicator of sensitivity and resistance to treatment. (ucbraid.org)
Proportion1
- Sensitivity or recall rate is the proportion of true positives. (lookformedical.com)
Benign1
- Screening studies using computed tomography (CT) show that up to 34% of such operations are performed for benign nodules [ 3 - 5 ]. (ersjournals.com)
Investigate1
- To investigate mechanisms of sensitivity and resistance to combination osimertinib (AZD9291) plus bevacizumab versus osimertinib (AZD9291) by molecularly characterizing tumor samples including T790M status. (ucbraid.org)
Diagnosis1
- Thoracic high-resolution computed tomography (HRCT) has been clearly demonstrated to be more sensitive and specific than CXR for the diagnosis of asbestos-related diseases 5 . (ersjournals.com)
Data2
- Dual Energy CT also known as Spectral CT is an advancement of Computed Tomography in which two energies are used to create two sets of data. (wikipedia.org)
- The authors compared volume rendering with maximum intensity projection (MIP) and shaded surface display as a technique for generating three-dimensional (3D) images of the vasculature from spiral computed tomography (CT) data sets. (nach-rom-zu-fuss.de)
Beam2
- Electron beam tomography (EBT) is a specific form of CT in which a large enough X-ray tube is constructed so that only the path of the electrons, travelling between the cathode and anode of the X-ray tube, are spun using deflection coils. (wikipedia.org)
- Structuring the x-ray beam into a 2D beamlet array, as shown in Fig. 1, enables three-modal x-ray micro-computed tomography (μ-CT). (cern.ch)
Stable3
- To examine by spiral CT the association between the presence and severity of CC [2] and thoracic aorta calcification in patients with stable angina pectoris. (ima.org.il)
- Our study demonstrates a strong association between the presence and severity of CC and the presence and severity of calcification of thoracic aorta in patients with stable angina pectoris as detected by spiral CT. (ima.org.il)
- In patients with occult hemorrhage or stable patients with active overt bleeding, multiphasic computed tomography should be performed after VCE or CTE to identify the source of bleeding and to guide further management. (medscape.com)
Introduction2
- Since the introduction of multislice computed tomography (MSCT) in 1998, non-invasive cardiac imaging has developed rapidly to become a robust method for morphological and functional imaging of the heart. (ecrjournal.com)
- Since the introduction of multislice computed tomography (MSCT) in 1998, non-invasive cardiac imaging has developed rapidly. (ecrjournal.com)
Negative2
- First identified in 1984, H. cinaedi , a gram-negative rod with spiral morphology and bipolar flagella, is indigenous to the intestinal tract of humans and other animals ( 4 , 5 ). (cdc.gov)
- We started patients on antimicrobial therapy with meropenem when H. cinaedi was suspected or gram-negative rods were identified, then changed to sulbactam/ampicillin after confirming drug sensitivity. (cdc.gov)
Techniques1
- Several MRA techniques have been developed for overcoming all these drawbacks and for improving its sensitivity. (hindawi.com)