Experimental pulmonary emboli detected using magnetic resonance. [Dogs]

Journal Article · Wed Oct 31 23:00:00 EST 1984 · Radiology; (United States)

OSTI ID:6306602

Gamsu, G; Hirji, M; Moore, E H; Webb, W R; Brito, A

Experimental pulmonary emboli that were labelled with non-magnetic barium threads and produced using aminocaprioc acid were introduced into the internal jugular veins of five dogs. Transverse axial magnetic resonance (MR) images and CT scans were obtained from the lung apex to base in each animal. The MR images were gated to the cardiac cycle, and spin echo techniques were used. Nineteen sites of embolism were determined from the CT scans. Two observers, who had no knowledge of the number or position of the emboli, individually assessed the MR images and marked the sites of emboli on clear acetate overlays. Each observer detected 12 of 19 emboli (63%) and each had one false positive result. The potential for MR to demonstrate relatively small pulmonary emboli has been shown.

• Research Organization: Univ. of California Medical Center, San Francisco
• OSTI ID: 6306602
• Journal Information: Radiology; (United States), Journal Name: Radiology; (United States) Vol. 153:2; ISSN RADLA
• Country of Publication: United States
• Language: English

Related Subjects

550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
AMINO ACIDS
ANIMALS
BODY
CARBOXYLIC ACIDS
COMPUTERIZED TOMOGRAPHY
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DOGS
DYNAMIC FUNCTION STUDIES
EMBOLI
LUNGS
MAGNETIC RESONANCE
MAMMALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANS
RESONANCE
RESPIRATORY SYSTEM
TOMOGRAPHY
VERTEBRATES