[Differential diagnosis of pulmonary nodules by using enhanced CT with iodinated contrast material].
OBJECTIVE
To evaluate pulmonary nodules by using enhanced CT.


METHODS
89 patients with pulmonary nodules included 63 pulmonary carcinomas and 26 benign pulmonary nodules. Thin-slice CT was performed before injection, 35 s, 2 min and 5 min after injection of 100 ml of contrast material at 2 ml/s. The maximum level of enhancement and the enhanced patterns were recorded.


RESULTS
Lung carcinomas enhanced significantly more than benign nodules. 27 lung carcinomas showed the sign of enhanced spots and twigs; 51 lung carcinomas and 4 benign nodules showed inhomogeneous enhancement; 3 lung carcinomas and 4 benign nodules had homogeneous enhancement; 5 tuberculomas and 1 inflammatory pseudotuma appeared ring enhancement; 12 tuberculomas showed nonenhancement.


CONCLUSIONS
Enhanced CT is a valuable method to differentiate pulmonary carcinomas from benign pulmonary nodules.
Zhou
Y
Y
Department of Radiology, Memorial Hospital, Sun Yat-Sen University of Medical Sciences, Guangzhou 510120, China.
Zhang
C
C
D000328:Adult; D000368:Aged; D003287:Contrast Media; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007089:Image Enhancement; D007455:Iodine; D008168:Lung / Q000000981:diagnostic imaging* / Q000473:pathology; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed / Q000379:methods*
D003287:Contrast Media; D007455:Iodine