Pulmonary nodules: detection of calcification by linear and pluridirectional movement in tomographic study
Calcification within solitary pulmonary nodules (1-2 cm range) was demonstrated by conventional tomography in a group of 20 patients. Each patient had a combined tomographic examination consisting of 15/sup 0/ linear movement followed by 34/sup 0/ hypocycloidal movement. Linear tomography was superior to pluridirectional tomography in 19 cases for visualization of calcium within the nodule. The results are attributed to differences in contrast sensitivity and blur phenomena between the two tomographic movements. This study, although comparing a specific linear movement with a specific pluridirectional movement, provides insight into the differences between tomographic techniques for a given task.
- Research Organization:
- Air Force Medical Center, Lackland Air Force Base, TX
- OSTI ID:
- 5245225
- Report Number(s):
- CONF-851152-
- Journal Information:
- Radiology; (United States), Journal Name: Radiology; (United States) Vol. 156:3; ISSN RADLA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Quantification of calcium in solitary pulmonary nodules using single- and dual-energy CT
Distinguishing benign from malignant pulmonary nodules by computed tomography