Results 151 to 160 of about 100,877 (193)

Multiecho magnetic resonance angiography

Magnetic Resonance in Medicine, 1987
AbstractSeveral pulse sequences which generate projected MR angiograms are presented. These pulse sequences exploit multiple‐gradient refocused echoes to obtain several independent angiograms, which can be combined or separately analyzed to provide more information than an individual angiogram. For example, a series of angiograms, each with a different
C L, Dumoulin, S P, Souza, H, Feng
openaire   +2 more sources

Abdominal Magnetic Resonance Angiography

Magnetic Resonance Imaging Clinics of North America, 2020
MR imaging hardware and software improvements have led to new applications for contrast-enhanced and noncontrast-enhanced magnetic resonance angiography in the abdomen and pelvis. Higher magnetic field strength MR imaging scanners have greater signal-to-noise ratio and contrast-to-noise ratio, which is used to improve spatial resolution or temporal ...
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

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

Magnetic Resonance Coronary Angiography

The American Heart Hospital Journal, 2003
Coronary artery disease is the leading cause of death in the United States. Catheter-based x-ray angiography is the current standard for diagnosis of coronary artery disease. Coronary angiography using cardiovascular magnetic resonance is a rapidly evolving technique that can noninvasively image the coronary arteries. The authors will discuss the basic
Ted P, Yang, Gerald M, Pohost
openaire   +4 more sources

Clinical utility of two-dimensional magnetic resonance angiography in detecting coronary artery disease [PDF]

European Heart Journal, 1997
Aims: The accuracy of magnetic resonance angiography in detecting proximal coronary artery stenoses is unclear. We postulated that fast magnetic resonance angiography is capable of (1) imaging proximal coronary arteries, and (2) detecting stenoses of ...
Mark B M Hofman, J Valk, Cees A Visser
exaly   +2 more sources

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 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

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

Intracranial Magnetic Resonance Angiography

Cardiovascular and Interventional Radiology, 1992
Intraarterial angiography remains the "gold standard" for the evaluation of the intracranial vasculature, but it carries with it the risks of local vascular damage, systemic reactions, transient neurologic deficits, permanent neurologic compromise, and even death.
P M, Ruggieri, T J, Masaryk, J S, Ross, M T, Modic   +3 more
openaire   +2 more sources