华西医院刘荣波 Distinguishing benign from malignant incidental adrenal lesions in enhanced CT imaging

Sichuan Da Xue Xue Bao Yi Xue Ban. 2012 Jan;43（1）:65-9.

[Distinguishing benign from malignant incidental adrenal lesions in enhanced CT imaging].

[Article in Chinese]

Yang L¹, Zhao S, Hu YJ, Zhou Y, Bai J, Liu RB.

Author information

• ¹Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China.

Abstract

OBJECTIVE:

To characterize the differences in radiologic features between benign and malignant adrenal lesions.

METHODS:

Enhanced multiple-slice spiral CT images of 99 patients with adrenal tumors were reviewed retrospectively, investigating into morphological features of different kinds of adrenal lesions with Wash-in Amplitude （WA, venous phase attenuation-unenhanced attenuation） and relative wash-in ratio （RWR, WA/artery phase attenuation）.

RESULTS:

A combination of threshold in diameter = 3.2 cm, unenhanced attenuation = 24 HU, and RWR value = 0.879 produced 94.28% sensitivity and 98.43% specificity in diagnosing adenomas.

CONCLUSION:

Enhanced CT imaging improves diagnostic accuracy of incidental adrenal lesions.

PMID: 22455134 [PubMed - indexed for MEDLINE]