Computed tomographyCatheterCardiovascular MagneticImagingNoninvasiveInvasiveVascularRadio wavesScanCarotidContrast2021ArteriesClinicalBrainVesselsStrong magnetic fieldTherapyCitationEcho timeImagesGradientArteryDigital subtractionCoronaryUltrasoundAorticThoracic aortaRenalContrastEchocardiographyStenosisTissuesCerebralVisualizationBloodStudyMotionGadoliniumDiagnosticDiagnosisSuperiorCardiacExamHeartMedicineResearch
Computed tomography10
- However, computed tomography angiography (CTA) or dynamic contrast-enhanced magnetic resonance angiography (MRA) is often necessary for treatment planning. (springer.com)
- Computed tomography angiography of the hand is performed with two successive acquisitions after injection of iodinated contrast medium. (springer.com)
- To compare the diagnostic value of magnetic resonance (MR) and computed tomography (CT) for the detection of coronary artery disease (CAD) with special regard to calcifications. (nih.gov)
- A brain aneurysm is often discovered after it has ruptured or by chance during diagnostic exam, such as computed tomography (CT scan), magnetic resonance imaging (MRI), or angiography that are being done for other reasons. (hopkinsmedicine.org)
- Computed tomography angiography. (healthline.com)
- Computed tomography angiography demonstrated a causative cerebral aneurysm in 4 patients (5.2% yield), all of whom had nonperimesencephalic SAH (9.3% yield). (wustl.edu)
- Computed tomography angiography is a valuable adjunct in the evaluation of patients with nonperimesencephalic SAH who have a negative initial catheter angiogram, demonstrating a causative cerebral aneurysm in 9.3% of patients. (wustl.edu)
- Magnetic resonance imaging (MRI) and computed tomography (CT) scans are used most often to look for brain diseases. (cancer.org)
- 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)
- This indicator measures the total number and density per million populations (females aged 50-60 years in case of Mammography) on the availability and use of 6 medical devices - Computed Tomography (CT) scanners, Magnetic Resonance Imaging (MRI) units, Gamma Cameras, Mammography, Angiography Units, and Lithotripters. (who.int)
Catheter4
- Unlike traditional angiography that involves placing a tube (catheter) into the body, MRA is noninvasive. (medlineplus.gov)
- Segment-based sensitivity, specificity, and accuracy for the detection of stenoses larger than 50% were determined as defined by the gold standard catheter coronary angiography along with the subjective image quality (Grade 1-4). (nih.gov)
- The yield of CT angiography (CTA) and MR angiography (MRA) in patients with subarachnoid hemorrhage (SAH) who have a negative initial catheter angiogram is currently not well understood. (wustl.edu)
- During angiography, a catheter is placed selectively via either the transjugular or transfemoral route into the hepatic vein to measure portal pressure. (medscape.com)
Cardiovascular Magnetic3
- Cardiovascular magnetic resonance imaging. (medlineplus.gov)
- Journal of Cardiovascular Magnetic Resonance , 2 (3), 217-224. (johnshopkins.edu)
- McConnell, MV, Stuber, M & Manning, WJ 2000, ' Clinical role of coronary magnetic resonance angiography in the diagnosis of anomalous coronary arteries ', Journal of Cardiovascular Magnetic Resonance , vol. 2, no. 3, pp. 217-224. (johnshopkins.edu)
Imaging23
- Magnetic resonance angiography (MRA) is a group of techniques based on magnetic resonance imaging (MRI) to image blood vessels. (wikipedia.org)
- Magnetic resonance imaging (MRI) of the spine is the diagnostic imaging examination of choice. (medscape.com)
- Carotid CT angiography (CTA) is a commonly performed imaging study in stroke centers. (medscape.com)
- Magnetic resonance imaging (MRI) may be beneficial because of its high visual detail. (medscape.com)
- Magnetic resonance imaging (MRI) technology uses a powerful magnet, radio waves, and an advanced computer system to produce detailed pictures of the organs, bones, and tissues inside your body. (dukehealth.org)
- Our facilities are ACR-accredited for Magnetic Resonance Imaging, which represents the highest level of image quality and patient safety. (dukehealth.org)
- Contrast agents for magnetic resonance imaging (MRI) improve anatomical visualizations. (nature.com)
- An artery occlusion may be missed with magnetic resonance imaging if magnetic resonance angiography is not performed. (springer.com)
- This imaging test is often done in combination with computerized tomography or magnetic resonance imaging. (mayoclinic.org)
- The utility of high resolution 3D MR angiography and 3D spoiled-gradient recalled (SPGR) imaging sequences for surgical decision-making in hemifacial spasm, as measured by sensitivity, specificity, and positive and negative predictive values, has not been previously determined. (elsevierpure.com)
- All patients underwent preoperative high-resolution 3D MR angiography and 3D SPGR imaging. (elsevierpure.com)
- The sensitivity of the SPGR imaging/MR angiography interpretation of neurovascular compression (NVC) by both a neurosurgeon and 2 neuroradiologists was determined in relation to the presence of actual NVC during surgery. (elsevierpure.com)
- Although high-resolution 3D MR angiography and 3D SPGR imaging was helpful in providing information about the anatomical relationship of cranial nerve VII and surrounding blood vessels, the authors determined that in the case of hemifacial spasm these types of imaging did not influence preoperative surgical decision-making. (elsevierpure.com)
- Magnetic resonance imaging (MRI) of the brain revealed temporal foci suggestive of white matter demyelination. (cdc.gov)
- For over three decades, the Magnetic Resonance Laboratory has been developing methods applicable to imaging of the cardiovascular system. (mayo.edu)
- People with tinnitus in only one ear and hearing loss should have gadolinium-enhanced magnetic resonance imaging (MRI). (banishtinnitus.net)
- Magnetic resonance imaging (MRI) with and without contrast and magnetic resonance angiography (MRA) studies of her brain were normal, and the patient was sent home. (cdc.gov)
- Magnetic resonance imaging (MRI) is a type of medical imaging that uses a strong magnetic field and very high frequency radio waves to produce highly detailed images. (msdmanuals.com)
- Paramagnetic Contrast Agents Radiographic contrast agents are substances used to distinguish between internal structures in medical imaging, such as various types of x-rays and magnetic resonance imaging (MRI). (msdmanuals.com)
- Angiography is the criterion standard arterial imaging study for the diagnosis of PAOD. (medscape.com)
- Magnetic resonance imaging and angiography can provide detailed information about vascular anomalies. (medscape.com)
- Magnetic Resonance Imaging (MRI) is a non-invasive medical imaging technique that uses a magnetic field and computer-generated radio waves to create detailed images. (lu.se)
- The Clinical Magnetic Resonance Imaging facility is housed within the Centre for Medical Imaging and Function at SkaĚŠne University Hospital in Lund. (lu.se)
Noninvasive3
- The Sperling Diagnostic Group provides fast, noninvasive, high resolution Magnetic Resonance Angiography. (sperlingdiagnostic.com)
- Studies have now documented the high accuracy of coronary magnetic resonance angiography (MRA) for the noninvasive detection and definition of anomalous coronary arteries among patients with suspected anomalous coronary arteries of congenital conditions associated with anomalous coronary arteries. (johnshopkins.edu)
- This is another noninvasive form of angiography combining computerized analysis of X-ray images with the use of intravenous contrast dye to allow your doctor to check the structure of your aorta and its nearby branches and to monitor blood flow. (mayoclinic.org)
Invasive3
- This less invasive form of angiography produces detailed images of your blood vessels without the use of catheters or X-rays. (mayoclinic.org)
- Doppler ultrasounds are used more often than angiography, as they are non-invasive and don't use X-ray radiation. (medbroadcast.com)
- Digital subtraction angiography (DSA), although invasive, is the criterion standard. (medscape.com)
Vascular1
- Ablavar is indicated for contrast-enhanced magnetic resonance angiography (CE-MRA) for visualisation of abdominal or limb vessels in adults only, with suspected or known vascular disease. (europa.eu)
Radio waves3
- To date, no side effects from the magnetic fields and radio waves have been reported. (medlineplus.gov)
- Magnetic and radio waves create a picture of the artery , sometimes with the use of contrast dye to get a clearer image. (healthline.com)
- magnetic resonance angiography (MRA) works by using radio waves in a strong magnetic field to produce data that a computer turns into detailed images of tissue slices. (mayoclinic.org)
Scan1
- Examiners can change how various tissues appear on a scan by varying the radio wave pulses, the strength and direction of the magnetic field, and other factors. (msdmanuals.com)
Carotid1
- Carotid angiography. (healthline.com)
Contrast6
- Phase-contrast (PC-MRA) can be used to encode the velocity of moving blood in the magnetic resonance signal's phase. (wikipedia.org)
- This study measured the extracranial intravascular volume flow rate response to acetazolamide using phase-contrast magnetic resonance angiography. (nih.gov)
- Intracranial measurement techniques are being developed to further study cerebrovascular reserve using phase-contrast magnetic resonance angiography. (nih.gov)
- Fig. 2: Characterization of SAIO and its magnetic properties for T 1 MRI contrast effects. (nature.com)
- Objectives Post-contrast magnetic resonance angiography (PC-MRA) enables visualization of vessel segments distal to an intra-arterial thrombus in acute ischemic stroke. (bmj.com)
- Contrast-enhanced magnetic resonance angiogram (MRA) shows a nidus and early draining veins in the forearm. (medscape.com)
20211
- 2021. https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/765683/all/magnetic_resonance_angiography. (unboundmedicine.com)
Arteries2
- Magnetic resonance angiography is used to generate images of arteries (and less commonly veins) in order to evaluate them for stenosis (abnormal narrowing), occlusions, aneurysms (vessel wall dilatations, at risk of rupture) or other abnormalities. (wikipedia.org)
- Magnetic resonance angiography (MRA) is an image-based evaluation of the arteries and veins that carry blood to and from the heart, brain, and throughout the body. (sperlingdiagnostic.com)
Clinical1
- Ferumoxytol-enhanced magnetic resonance angiography is a feasible method for the clinical evaluation of lower extremity arterial disease. (insa-lyon.fr)
Brain2
Vessels3
- Magnetic resonance angiography (MRA) is an MRI exam of the blood vessels. (medlineplus.gov)
- The projectional nature of conventional x-ray angiography often leads to difficulty in the definition of anomalous vessels. (johnshopkins.edu)
- X-rays of your blood vessels (angiography). (mayoclinic.org)
Strong magnetic field2
- For MRI, a person lies on a motorized table that is moved into the narrow interior of a large tubular scanner, which produces a strong magnetic field. (msdmanuals.com)
- But when protons are surrounded by a strong magnetic field, as in an MRI scanner, they line up with the magnetic field. (msdmanuals.com)
Therapy1
- Biocompatible Fe 3 O 4 -Pd Janus nanoparticles were designed to achieve significantly high magnetic-photo heating efficiency accompanied by enhanced ROS generation for efficient cancer therapy. (rsc.org)
Citation1
- citation needed] Time-of-flight (TOF) or inflow angiography, uses a short echo time and flow compensation to make flowing blood much brighter than stationary tissue. (wikipedia.org)
Echo time1
- Twenty-seven patients with known CAD were examined with a targeted, navigator-gated, free-breathing, steady-state free precession MR angiography sequence (repetition time = 5.6 milliseconds, echo time = 2.8 milliseconds, flip angle 110 degrees ) and 16-slice coronary CT angiography. (nih.gov)
Images4
- The Magnetic Resonance Laboratory is currently engaged in multiple projects that involve increasing image acquisition speed, advancing the means for image reconstruction, reducing artifacts in MR images, improving spatiotemporal resolution and increasing the value of MRI . (mayo.edu)
- During an MRI, a computer records changes in the magnetic field around a person's body to create cross-sectional, detailed images. (msdmanuals.com)
- Gadolinium agents change the magnetic field in a way that makes images clearer. (msdmanuals.com)
- Machine learning for evolutive lymphoma and residual masses recognition in whole body diffusion weighted magnetic resonance images. (cdc.gov)
Gradient1
- It is created by turning on the magnetic field gradient for some time, and then switching the magnetic field gradient to the opposite direction for the same amount of time. (wikipedia.org)
Artery1
- During angiography, a dye solution that shows up on an X-ray is injected into the artery. (medbroadcast.com)
Digital subtraction4
- In this context, our study analyzes the role of carotid testing with magnetic resonance angiography and carotid duplex scanning, as compared to arterial digital subtraction angiography. (nih.gov)
- Comparison of magnetic resonance angiography, duplex ultrasound, and digital subtraction angiography in assessment of extracranial internal carotid artery stenosis. (nih.gov)
- Carotid bifurcation stenosis: a comparative study between MR angiography and duplex scanning with respect to digital subtraction angiography. (nih.gov)
- Its benefits compared to the clinical gold-standard method, digital subtraction angiography (DSA), are well-known and widely discussed: a lack of ionizing radiation, non-invasiveness, and no reliance on iodinated contrast agents, the latter being particularly important in patients with impaired renal function. (biomedcentral.com)
Coronary1
- Coronary computed tomography angiography (CCTA) is a noninvasive method to image the coronary arteries. (medscape.com)
Ultrasound1
- These include ultrasound, computed tomography, magnetic resonance and conventional angiography. (cincinnatichildrens.org)
Aortic1
- Magnetic resonance angiography (MRA) of a patients in our research study with Takayasu's arteritis and severe damage of the aortic arch. (nih.gov)
Thoracic aorta1
- Endovascular repair of the descending thoracic aorta: mid-term results and evaluation of magnetic resonance angiography. (insa-lyon.fr)
Renal2
- magnetic resonance angiography (MRA) to evaluate adults with known or suspected renal or aorto-ilio-femoral occlusive vascular disease. (nih.gov)
- This review focuses on the technical basics and clinical applications of MR angiography (MRA) with the goal of enabling readers to acquire high-resolution, high quality renal artery MRA. (biomedcentral.com)
Contrast4
- Phase-contrast (PC-MRA) can be used to encode the velocity of moving blood in the magnetic resonance signal's phase. (wikipedia.org)
- Unlike ionic (i.e., iodine-based) contrast agents used in conventional contrast angiography (CA), allergic reactions to gadolinium are extremely rare. (cms.gov)
- A Comparative Analysis of Two Different Image Subtraction Techniques in High-Resolution 3D Contrast-Enhanced Peripheral MR Angiography. (mpg.de)
- An Investigation of the Influence of Spatial Resolution and Different Image Subtraction Techniques on Perceived Vessel Calibre and Image Quality in 3D Contrast-Enhanced MR Angiography of Tibial Vessels. (mpg.de)
Echocardiography1
- Vitamin A levels and the results of magnetic resonance angiography, echocardiography, and a thrombophilia screening were also normal. (discovermagazine.com)
Stenosis2
- Magnetic resonance angiography (MRA) is now a widely accepted technique used to characterize vascular pathology such as stenosis, dissection, fistula, and aneurysms. (medscape.com)
- Conclusions - Gadolinium-enhanced 3D MRA is a fast and accurate technique for delineation of all sources of pulmonary blood supply in patients with complex pulmonary stenosis and atresia and can be considered a noninvasive alternative to diagnostic catheterization with x-ray angiography. (elsevierpure.com)
Tissues2
- By analyzing the amount of energy released from tissues exposed to a strong magnetic field, MRA provides images of normal and diseased blood vessels, as well as visualization and quantification of blood flow through these vessels. (cms.gov)
- Examiners can change how various tissues appear on a scan by varying the radio wave pulses, the strength and direction of the magnetic field, and other factors. (msdmanuals.com)
Cerebral5
- Blatter, D. D., Parker, D. L. & Robison, R. O. Cerebral MR angiography with multiple overlapping thin slab acquisition. (crossref.org)
- Magnetic resonance angiography confirmed occlusion of the right middle cerebral artery and right superior cerebellar artery. (karger.com)
- We investigated normal hemodynamic features of the SPS on cerebral angiography as well as the frequency and types of the SPS drainage from CSDAVFs. (ajnr.org)
- We evaluated 119 patients who underwent cerebral angiography by focusing on visualization and hemodynamic status of the SPS. (ajnr.org)
- For evaluating normal hemodynamic features of the SPS, we retrospectively reviewed 119 consecutive patients who underwent cerebral angiography between May 2010 and October 2011 at our institution. (ajnr.org)
Visualization1
- Vemuri, P., Kholmovski, E. G. & Parker, D. L. Choosing the right resolution for vessel visualization in MR angiography. (crossref.org)
Blood3
- citation needed] Time-of-flight (TOF) or inflow angiography, uses a short echo time and flow compensation to make flowing blood much brighter than stationary tissue. (wikipedia.org)
- Magnetic resonance angiography (MRA) is an MRI exam of the blood vessels. (medlineplus.gov)
- Computed Tomographic Angiography uses CT technology along with sophisticated computer technology to produce elegant images of the brain's blood vessels in a noninvasive manner. (emoryhealthcare.org)
Study1
- indeed, a recent MR angiography (MRA) study reported that even the larger vessels perceptible by MRA exhibit a loss of vessel number and a mild increase in vessel tortuosity during healthy aging. (ajnr.org)
Motion2
- To assess the performance of motion gating strategies for mouse cardiac magnetic resonance (MR) at high magnetic fields by quantifying the levels of motion artifact observed in images and spectra in vivo. (nih.gov)
- The basic elements by which MRI produces an image are the density of hydrogen nuclei in the object being examined, their motion, and the relaxation times, and the period of time required for the nuclei to return to their original states in the main, static magnetic field after being subjected to a brief additional magnetic field. (cms.gov)
Gadolinium1
- Gadolinium agents change the magnetic field in a way that makes images clearer. (msdmanuals.com)
Diagnostic1
- Magnetic Resonance Angiography (MRA) is a non-invasive diagnostic test that is an application of MRI. (cms.gov)
Diagnosis1
- Magnetic Resonance Angiography (MRA) confirmed the diagnosis. (nih.gov)
Superior1
- Superior demonstration by magnetic resonance angiography. (nih.gov)
Cardiac2
Exam1
- For the MRA, you will lie on an exam table that slides into a large circular area, the magnetic field. (webmd.com)
Heart1
- The strong magnetic fields created during an MRI can cause heart pacemakers and other implants to not work as well. (medlineplus.gov)
Medicine4
- Johns Hopkins Medicine: "Magnetic resonance angiography (MRA). (webmd.com)
- Magnetic Resonance in Medicine. (mayo.edu)
- Magnetic Resonance in Medicine 1998;39:625. (mayo.edu)
- Magnetic Resonance in Medicine 1999;41:179. (mayo.edu)
Research1
- Dr. Vasile's research on using MRA (magnetic resonance angiography) with perforator flaps is one of several ways the practice continuously works to achieve this goal. (julievasilemd.com)