The value of three-phase pulmonary helical CT in diagnosing peripheral pulmonary cancer (diameter
Chinese Journal of Oncology
; (12): 308-311, 2004.
Article
in Chinese
| WPRIM (Western Pacific)
| ID: wpr-254346
Responsible library:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the value of three-phase pulmonary helical CT in diagnosing peripheral pulmonary cancer (diameter </= 3 cm).</p><p><b>METHODS</b>Serial 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 <or= 3 cm). The three-phase pulmonary helical CT was established by analyzing enhancement feature of thoracic aorta and pulmonary artery, and then the enhancement feature of three-phase pulmonary helical CT was analyzed.</p><p><b>RESULTS</b>The 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.</p><p><b>CONCLUSION</b>The three-phase pulmonary helical CT could reflect the enhancement feature, blood supply of bronchial artery in peripheral pulmonary cancer (diameter </= 3 cm), it is helpful in early diagnosis and differentiation.</p>
Full text:
Available
Database:
WPRIM (Western Pacific)
Main subject:
Aorta, Thoracic
/
Pulmonary Artery
/
Diagnostic Imaging
/
Radiographic Image Enhancement
/
Solitary Pulmonary Nodule
/
Tomography, Spiral Computed
/
Diagnosis, Differential
/
Lung Neoplasms
/
Methods
Type of study:
Diagnostic study
/
Screening study
Limits:
Adult
/
Aged
/
Aged, 80 and over
/
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Oncology
Year:
2004
Document type:
Article
Full text:
Available
Database:
WPRIM (Western Pacific)
Main subject:
Aorta, Thoracic
/
Pulmonary Artery
/
Diagnostic Imaging
/
Radiographic Image Enhancement
/
Solitary Pulmonary Nodule
/
Tomography, Spiral Computed
/
Diagnosis, Differential
/
Lung Neoplasms
/
Methods
Type of study:
Diagnostic study
/
Screening study
Limits:
Adult
/
Aged
/
Aged, 80 and over
/
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Oncology
Year:
2004
Document type:
Article