Yuqin Ding MD, Presenter: Nothing to Disclose

Jianjun Zhou, Abstract Co-Author: Nothing to Disclose

Mengsu Zeng MD, PhD, Abstract Co-Author: Nothing to Disclose

Caixia Fu, Abstract Co-Author: Employee, Siemens AG

Hui Liu, Abstract Co-Author: Employee, Siemens AG

To evaluate the usefulness of T1 mapping in distinguishing benign and malignant renal lesions

29 malignant renal lesions in 29 patients and 14 benign renal lesions in 14 patients were examined using non-enhanced modified look-locker inversion recovery for T1 mapping. The maximum, minimum and averaged T1 values of the lesions were used for quantitative evaluation. Independent t test and receiver operating characteristics analysis were performed for statistical evaluation.

The maximum, minimum and averaged T1 values of benign and malignant renal lesions were (1144.71±446.9)ms,(1081.9±438.9) ms,(1096.2±418.3)ms and (1830.2±350.3)ms,(1527.4±361.5) ms,(1673.5±341.2)ms, respectively. The maximum, minimum and averaged T1 values of benign renal lesions were all significantly lower than those of malignant renal lesions(p＜0.05). When the cutoff values of maximum, minimum and averaged T1 values were set at 1641.8, 1464.0 and 1457.1, respectively, the diagnostic sensitivity and specificity of malignant renal lesions were 72.4%, 100%, 55.2%, 100%, and 65.5%, 100%, respectively.

It is valuable to use non-enhanced modified look-locker inversion recovery for T1 mapping in distinguishing benign and malignant renal lesions.

Non-enhanced modified look-locker inversion recovery for T1 mapping is useful in distinguishing benign and malignant renal lesions especially in patients with chronic renal disease.

Ding, Y, Zhou, J, Zeng, M, Fu, C, Liu, H, Modified Look-locker Inversion Recovery (MOLLI) for T1 Mapping: Usefulness in Distinguishing Benign and Malignant Renal Lesions.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14045506.html