Objective:The aim of this study was to explore the diagnostic value of multi-slice computer tomography(MSCT) in solitary pulmonary nodule(SPN).Methods:Contrastive analysis of the differences of CT signs between benign...Objective:The aim of this study was to explore the diagnostic value of multi-slice computer tomography(MSCT) in solitary pulmonary nodule(SPN).Methods:Contrastive analysis of the differences of CT signs between benign and malignant SPN.Results:The typical sign of pleural indentation was a reliable sign for lung cancers.Vacuole sign suggested lung cancer highly.Blood vessels cluster involving the vein alone had big opportunity to lung cancer.Type I tumor-bronchial relation was the most common relation in lung cancers.Type V tumor–bronchial relation was the most common relation in benign SPN.Conclusion:MSCT had a very high diagnostic value in SPN.展开更多
Objective: To investigate the features of hepatic abscess by dynamic contrast-enhanced CT. Methods : CT films of 62 cases of hepatic abscesses were reviewed retrospectively. All the patients underwent both plain and e...Objective: To investigate the features of hepatic abscess by dynamic contrast-enhanced CT. Methods : CT films of 62 cases of hepatic abscesses were reviewed retrospectively. All the patients underwent both plain and enhanced CT scanning, and 23 of them received dynamic CT examination. Results: The dynamic CT appearance of hepatic abscesses was characterized by: ① In the early phase (30 s), abscess membrane enhanced obviously and the liver parenchyma surrounding the abscesses enhanced transiently; ② In the late phase (60-90 s) , the enhancement patterns of the abscesses varied from the ring enhancement of the abscess membrane to the irregular enhancement of the abscess; ③ In the delayed phase, the enhancement of abscess diminished in which the hypodense ring enhanced and became isodense, or the abscess enhanced diffusely and became smaller, the colliquative necrosis area more obvious. Conclusion: Contrast enhanced CT should be used routinely in the evaluation of hepatic abscesses. The dynamic and delayed scan is necessary to diagnose atypical hepatic abscesses.展开更多
文摘Objective:The aim of this study was to explore the diagnostic value of multi-slice computer tomography(MSCT) in solitary pulmonary nodule(SPN).Methods:Contrastive analysis of the differences of CT signs between benign and malignant SPN.Results:The typical sign of pleural indentation was a reliable sign for lung cancers.Vacuole sign suggested lung cancer highly.Blood vessels cluster involving the vein alone had big opportunity to lung cancer.Type I tumor-bronchial relation was the most common relation in lung cancers.Type V tumor–bronchial relation was the most common relation in benign SPN.Conclusion:MSCT had a very high diagnostic value in SPN.
文摘Objective: To investigate the features of hepatic abscess by dynamic contrast-enhanced CT. Methods : CT films of 62 cases of hepatic abscesses were reviewed retrospectively. All the patients underwent both plain and enhanced CT scanning, and 23 of them received dynamic CT examination. Results: The dynamic CT appearance of hepatic abscesses was characterized by: ① In the early phase (30 s), abscess membrane enhanced obviously and the liver parenchyma surrounding the abscesses enhanced transiently; ② In the late phase (60-90 s) , the enhancement patterns of the abscesses varied from the ring enhancement of the abscess membrane to the irregular enhancement of the abscess; ③ In the delayed phase, the enhancement of abscess diminished in which the hypodense ring enhanced and became isodense, or the abscess enhanced diffusely and became smaller, the colliquative necrosis area more obvious. Conclusion: Contrast enhanced CT should be used routinely in the evaluation of hepatic abscesses. The dynamic and delayed scan is necessary to diagnose atypical hepatic abscesses.
