Are unenhanced scans necessary in biphasic contrast-enhanced helical CT for detection of hepatic tumors?

C. M. Jeng, C. H. Kung, Y. C. Wang, W. Y. Lee, C. Y. Wu, J. K. Fan

研究成果: 雜誌貢獻文章同行評審

摘要

We evaluated the need for preliminary unenhanced scans in biphasic contrast-enhanced helical CT for detection of hepatic tumors in 228 consecutive patients in this study. All patients had both unenhanced non-contrast (NC) and contrast-Enhanced biphasic CT (BPCT) including hepatic arterial phase (HAP) and portal venous phase (PVP) studies with a helical CT scanner. Two hundred ninty-three hepatic tumors were found in 182 patients with the combined readings of NC, HAP and PVP images, but 2 (0.68%) were missed when the NC images were not included in the readings. There was no statistically significant difference in the sensitivities of lesion detection either with or without NC images when reading the BPCT (p >0.99). As a consequence, the necessity of routine unenhanced CT prior to intravenous contrast enhancement is minimized when the clinical question is the presence or absence of hepatic tumors. The elimination of unenhanced scans from helical BPCT of the liver could help in saving money, increasing patient throughput and reducing patient exposure to radiation.

原文英語
頁(從 - 到)119-124
頁數6
期刊Chinese Journal of Radiology
25
發行號3
出版狀態已發佈 - 一月 1 2000
對外發佈Yes

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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