Results 211 to 220 of about 99,920 (253)

Stereotactic Magnetic Resonance Angiography

Stereotactic and Functional Neurosurgery, 1992
Visualization of the surgical trajectory with respect to the cerebral vasculature may enhance the safety of some stereotactic neurosurgical procedures. Traditional stereotactic angiography is tedious and, being an invasive procedure, poses some risk to the patient.
G H, Barnett, D W, Kormos, C P, Steiner
openaire   +2 more sources

Magnetic resonance coronary angiography

Current Cardiology Reports, 2003
Magnetic resonance coronary angiography (MRCA) has witnessed tremendous technical advances over the past decade. Although high-quality images of the coronary arteries have been demonstrated, this imaging modality is not performed routinely today. The fundamental properties of the coronary arteries deterring noninvasive imaging are well known.
Phillip C, Yang, Michael V, McConnell, Dwight G, Nishimura, Bob S, Hu   +3 more
openaire   +4 more sources

Magnetic Resonance Angiography Techniques

Investigative Radiology, 1992
After a radio frequency pulse, the decay of the magnetic resonance (MR) signal is described by two relaxation processes, T1 and T2. T1 describes the rate at which the magnetization realigns itself along the external magnetic field direction (ML), and T2 describes the rate of decay of the magnetization component along the transverse axis (MT).
R R, Price, J L, Creasy, C H, Lorenz, C L, Partain   +3 more
openaire   +2 more sources

Magnetic Resonance Angiography in Prostatodynia

European Urology, 1995
Three-dimensional magnetic resonance venography (3D MRV) of the prostate and the pelvic cavity was demonstrated in 8 normal subjects and 12 patients with prostatodynia. In all normal subjects and patients, 3D MRV images were successfully obtained. The deep dorsal vein of the penis sends major branches into the anterior and lateral capsular veins as ...
T, Terasaki, H, Watanabe, M, Saitoh, M, Uchida, S, Okamura, K, Shimizu   +5 more
openaire   +2 more sources

GI magnetic resonance angiography

Gastrointestinal Endoscopy, 2002
MRA is a type of magnetic resonance imaging (MRI) in which blood appears bright. To form a magnetic resonance (MR) angiogram, a 3-dimensional set of thin sections is acquired through the region of interest. The images are then processed by computer to create a 2-dimensional projected display that resembles a conventional angiogram.
openaire   +2 more sources

Magnetic resonance angiography: A review

Academic Radiology, 1998
Summary MR technology continues to advance at a spectacular pace. It is increasingly useful for safe, accurate imaging of vascular anatomy and pathology throughout the body.
D B, Stafford Johnson, M R, Prince, T L, Chenevert   +2 more
openaire   +2 more sources

Coronary Magnetic Resonance Angiography

Cardiology in Review, 2001
Despite advances in both prevention and treatment, cardiovascular disease remains the leading cause of morbidity and mortality in the United States. The current gold standard for the diagnosis of coronary artery disease is the x-ray coronary angiogram, which is both costly and associated with a small risk of morbidity. More than 1 million Americans are
R M, Botnar, M, Stuber, P G, Danias, K V, Kissinger, P, Börnert, W J, Manning   +5 more
openaire   +2 more sources

Coronary magnetic resonance angiography

Journal of Magnetic Resonance Imaging, 2007
AbstractCoronary magnetic resonance angiography (MRA) is a powerful noninvasive technique with high soft‐tissue contrast for the visualization of the coronary anatomy without X‐ray exposure. Due to the small dimensions and tortuous nature of the coronary arteries, a high spatial resolution and sufficient volumetric coverage have to be obtained. However,
Matthias, Stuber, Robert G, Weiss
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MAGNETIC RESONANCE ANGIOGRAPHY OF THE ABDOMEN

Gastroenterology Clinics of North America, 1995
The applications of abdominal MR angiography have been slow as compared with its applications in the head and neck mainly because of greater technical difficulties in dealing with respiratory motion and the use of the body coil, which has a poorer signal-to-noise ratio than head or surface coils.
M F, Müller, R R, Edelman
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Peripheral Magnetic Resonance Angiography

Topics in Magnetic Resonance Imaging, 2001
Peripheral vascular disease (PVD) is a common disorder in western society. Reflecting on the risks and costs of contrast arteriography, magnetic resonance angiography is a powerful noninvasive imaging modality for the diagnostic workup of patients with peripheral vascular disease.
M, Goyen, J F, Debatin, S G, Ruehm
openaire   +2 more sources