Cine-gradient-refocused MR imaging of central pulmonary emboli.

Cine-gradient-refocused MR imaging of central pulmonary emboli. Research Abstract Details 

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Cine-gradient-refocused MR imaging of central pulmonary emboli. Abstract Text:

R H Posteraro,H D Sostman,C E Spritzer,R J Herfkens,

We studied the use of MR imaging with a limited-flip-angle, gradient-refocused pulse sequence to show central pulmonary emboli in 11 patients and to distinguish acute from chronic emboli. The central pulmonary vasculature was imaged by using a cine-limited-flip-angle (cine-MR) pulse sequence with 63/13 (TR/TE) and a 30 degrees flip angle (theta), as well as standard spin-echo sequences. Patients were selected on the basis of suspicion of central pulmonary embolism and correlative studies done within 24 hr of the MR examination. Correlations with other studies were based on the original MR report and blinded review of the MR images by two observers in consensus. Emboli were shown in all cases by cine-MR, and they corresponded to the locations of angiographic abnormalities and mismatched perfusion defects on scintigraphy. In three patients considered to have acute pulmonary embolus on the basis of angiography, the cine-MR studies were consistent with acute pulmonary embolus in two patients and chronic pulmonary embolus in one patient (however, in that patient pathologic examination showed chronic embolism). In one case in which angiography led to the diagnosis of acute and chronic pulmonary embolism, the cine-MR study showed acute embolism. In three patients thought to have chronic pulmonary embolus on the basis of angiography, the cine-MR study was interpreted as representing acute embolus in one patient and chronic embolus in two patients. In this highly selected, small group of patients, cine-MR imaging was accurate in showing central pulmonary embolism.

Cine-gradient-refocused MR imaging of central pulmonary emboli. Publishing Authors By Initials

RH Posteraro,HD Sostman,CE Spritzer,RJ Herfkens,

For similar respiratory tract diseases: lung diseases: pulmonary embolism research abstracts see: respiratory tract diseases: lung diseases: pulmonary embolism research

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Cine-gradient-refocused MR imaging of central pulmonary emboli. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: AJR. American journal of roentgenology

VOLUME: 152

Page Numbers: 465-8

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ISSN: 0361-803X

DAY: 15

MONTH: Mar

YEAR: 1989

Cine-gradient-refocused MR imaging of central pulmonary emboli. Information

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LANGUAGE: eng

NlmUniqueID: 7708173

Cine-gradient-refocused MR imaging of central pulmonary emboli. Keywords Mesh Terms:

KEYWORDS: Pulmonary Embolism

MESH TERMS: diagnosis

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Grant and Affiliation Information for Cine-gradient-refocused MR imaging of central pulmonary emboli.

AFFILIATION: Department of Radiology, Duke University Medical Center, Durham, NC 27710.

Country: UNITED STATES

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MEDLINETA: AJR Am J Roentgenol

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