The value of three-phase pulmonary helical CT in diagnosing peripheral pulmonary cancer (diameter
- Author:
Li-lian TAN
1
;
Yang-bin LI
;
Shu-xin LI
;
Jin-dai JIANG
;
Zhi-ming LI
;
Shi-zhang HUANG
;
Pin-xian PENG
Author Information
- Publication Type:Journal Article
- MeSH: Adult; Aged; Aged, 80 and over; Aorta, Thoracic; diagnostic imaging; Diagnosis, Differential; Female; Humans; Lung Neoplasms; blood supply; diagnostic imaging; Male; Middle Aged; Pulmonary Artery; diagnostic imaging; Radiographic Image Enhancement; Solitary Pulmonary Nodule; blood supply; diagnostic imaging; Tomography, Spiral Computed; methods
- From: Chinese Journal of Oncology 2004;26(5):308-311
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo evaluate the value of three-phase pulmonary helical CT in diagnosing peripheral pulmonary cancer (diameter
METHODSSerial single-slice dynamic scans were obtained with helical CT before and after injection of 100 ml contrast material in 60 patients with solitary pulmonary nodules (SPNs, diameter
RESULTSThe delayed times of three-phase pulmonary helical CT were pulmonary artery phase (15 second), bronchial artery phase (36 second), equilibrium phase (90 second) respectively. The prevalence model of density change for three-phase pulmonary helical CT: no enhancement, marked enhancement, moderate-enhancement in pulmonary cancer; slight or moderate-enhancement, marked-enhancement, marked-enhancement in inflammatory nodules; no enhancement or light-enhancement in tuberculoma and metastatic nodules. The enhanced branch and small spot vessels were demonstrated by bronchial artery phase in 82.9% of pulmonary cancer nodules.
CONCLUSIONThe three-phase pulmonary helical CT could reflect the enhancement feature, blood supply of bronchial artery in peripheral pulmonary cancer (diameter
