Evaluation of abdominal aortic aneurysms with NMR imaging

Conference · Sun Jan 01 04:00:00 EST 1984 · J. Nucl. Med.; (United States)

OSTI ID:6574216

Evancho, A; Osbakken, M; Weidner, W

Seven patients (5 male and 2 female, age range from 50 to 88) with angiographic proven abdominal aortic aneurysms were evaluated with NMR imaging (1.5 K gauss system) of the abdomen. Images were obtained in transverse, coronal and saggital planes with three radiofrequency pulse sequences (saturation recovery (SR), inversion recovery (IR), and spin echo (SE)). All of the aneurysms were identified as to site and relative size with NMR images. The lumen in which there was flowing blood was always dark (low intensity), whereas the aneurysmal area which contained presumed clot was brighter (high intensity) on SR images. Although the size, location and relationship to other blood vessels was best demonstrated on aortography, NMR images provided similar information in all cases. NMR images correctly demonstrated thrombus in six cases. The authors conclude that NMR imaging provides a clear delineation of the anatomy of abdominal aortic aneurysms. In addition it can provide information concerning tissue type, i.e., it distinguished clot from moving blood. It may be possible in the future to further characterize atherosclerotic and other pathological changes in vessel architecture by using various pulse sequences and timing parameters to provide in vivo histological typing.

• Research Organization: The Pennsylvania State Univ., Hershey Medical Center, Hershey, PA
• OSTI ID: 6574216
• Report Number(s): CONF-840619-
• Conference Information: Journal Name: J. Nucl. Med.; (United States) Journal Volume: 25:5
• Country of Publication: United States
• Language: English

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59 BASIC BIOLOGICAL SCIENCES
62 RADIOLOGY AND NUCLEAR MEDICINE
ABDOMEN
ANATOMY
ARTERIES
BLOOD COAGULATION
BLOOD FLOW
BLOOD VESSELS
BODY
BODY AREAS
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
CHEST
CORONARIES
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DISEASES
HEART
HISTOLOGY
IMAGES
NMR IMAGING
ORGANS
PATHOLOGICAL CHANGES
PULSE TECHNIQUES