ISSN:
1432-0509
Keywords:
Key words: Liver neoplasms, magnetic resonance (MR)—Liver neoplasms, computed tomography (CT)—Comparative study.
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract. Background: To compare the utility of arterial-phase magnetic resonance (APMR) imaging and spiral computed tomography arteriography (CTA) for detection of hepatic tumors. Methods: Both APMR imaging and CTA were performed in 24 patients with liver tumors. APMR imaging was initiated at 25–30 s after an intravenous bolus injection of gadolinium-diethylenetriamine pentaacetic acid using the fast multiplanar spoiled GRASS technique. CTA was initiated at 3 s after hepatic arterial injection of 30–64% nonionic contrast agent. APMR and CTA images were separately reviewed retrospectively by two blinded readers. Afterward, matched pair was reviewed to determine which had better lesion conspicuity. Results: The sensitivities for hepatic tumors were 67.2 and 86.6% in APMR and CTA, respectively (p 〈 0.01). Seven (12.5%) and 21 (23.9%) false-positive lesions were seen at APMR and CTA, respectively (NS). Lesion conspicuity was comparable between APMR and CTA. Conclusions: Although APMR imaging is an useful noninvasive method to detect hypervascular liver tumors, APMR imaging is still not an alternative to CTA with respect to tumor detectability.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s002619900371
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