CT evaluation of suspected hepatic metastases: comparison of techniques for i.v. contrast enhancement.

CT evaluation of suspected hepatic metastases: comparison of techniques for i.v. contrast enhancement. Research Abstract Details 

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CT evaluation of suspected hepatic metastases: comparison of techniques for i.v. contrast enhancement. Abstract Text:

D M Paushter,R K Zeman,M L Scheibler,P L Choyke,M H Jaffe,L R Clark,

Although IV injection of contrast material is widely used for detection and follow-up of hepatic metastases on CT, the optimal method of contrast enhancement has not yet been defined. A prospective study was performed in 50 consecutive patients with suspected hepatic metastases. Lesion size and detectability were compared on unenhanced CT scans, scans obtained during a bolus injection of contrast material (early bolus phase), and scans obtained during a rapid infusion after the loading bolus. A total of 60 hepatic lesions were evaluated in 26 patients, 19 with histologic confirmation of metastases and seven with strong supportive evidence. The bolus phase allowed detection of 15% more lesions than did examination during the rapid-infusion phase. Lesion size varied, depending on the timing and method of contrast administration; the largest measurements were obtained during bolus injection of contrast material. In addition, bolus administration of contrast material subjectively resulted in the best lesion detection. Because the three techniques of IV contrast enhancement may produce different size measurements, sequential examinations must be tailored appropriately. Scanning during the bolus phase is technically possible with current CT equipment and is recommended as the primary CT screening examination for hepatic metastases.

CT evaluation of suspected hepatic metastases: comparison of techniques for i.v. contrast enhancement. Publishing Authors By Initials

DM Paushter,RK Zeman,ML Scheibler,PL Choyke,MH Jaffe,LR Clark,

For similar tomography, x-ray computed research abstracts see: tomography, x-ray computed research

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CT evaluation of suspected hepatic metastases: comparison of techniques for i.v. contrast enhancement. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: AJR. American journal of roentgenology

VOLUME: 152

Page Numbers: 267-71

Journal Abbreviation:

ISSN: 0361-803X

DAY: 15

MONTH: Feb

YEAR: 1989

CT evaluation of suspected hepatic metastases: comparison of techniques for i.v. contrast enhancement. Information

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LANGUAGE: eng

NlmUniqueID: 7708173

CT evaluation of suspected hepatic metastases: comparison of techniques for i.v. contrast enhancement. Keywords Mesh Terms:

KEYWORDS: Tomography, X-Ray Computed

MESH TERMS: methods

Chemical & Substance for Abstract: CT evaluation of suspected hepatic metastases: comparison of techniques for i.v. contrast enhancement. Information

Substance Name: Diatrizoate Meglumine

Registry Number: 131-49-7

Grant and Affiliation Information for CT evaluation of suspected hepatic metastases: comparison of techniques for i.v. contrast enhancement.

AFFILIATION: Department of Radiology, Georgetown University Hospital, Washington, DC 20007-2197.

Country: UNITED STATES

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MEDLINETA: AJR Am J Roentgenol

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