Multislice Spiral Computed Tomography Postprocessing Technology in the Imaging Diagnosis of Extremities and Joints

Objective. To improve the clinical detection rate of bone and joint fractures of the extremities and to explore the value and significance of the application of multislice spiral computed tomography (MSCT) postprocessing technology in diagnosis. Methods. 80 patients with bone and joint fractures of the extremities admitted to the hospital were selected as the research objects. The patients received X-ray digital radiography (DR) plain film examination and then MSCT examination. At the same time, multiplane reconstruction (MPR) and surface shadow display (SSD) and volume rendering three-dimensional imaging (VRT) technology and other postprocessing technologies compare the differences in the detection rate of limbs and joint fractures between the two inspection methods. Results. A total of 100 fractures were found in 80 patients. The detection rate of X-ray DR was 69%. After MSCT postprocessing technology, the detection rates of MPR, SSD, and VRT were 96%, 98%, and 99%, respectively. The accuracy of MSCT postprocessing technology in diagnosing extremity bone and joint fractures was significantly higher than that of DR, and the difference between groups was statistically significant. Conclusion. MSCT postprocessing technology for patients with extremity bone and joint fractures has a good effect. It is not only noninvasive but also has a high detection rate. It can significantly reduce the missed and misdiagnosed rate and provide detailed imaging data for the formulation of clinical treatment plans.

Relationship Between Pulmonary Hamartoma and Bronchus: Multislice Spiral Computed Tomography Findings

Objective The aim of the present study is to investigate the relationship between pulmonary hamartomas (PHs) and bronchi on multislice spiral computed tomography (MSCT) images. Methods The MSCT scans of 218 PHs from 216 pathologically confirmed patients were reviewed. The PHs were divided into two groups, namely, the central endobronchial and intraparenchymal groups, in accordance with location. Multiplanar reconstruction was used to demonstrate PH–bronchus relationship patterns. The PH–bronchus relationships in the intraparenchymal group were classified into five patterns: type I, the bronchus was cut off by the tumor; type II, the bronchus was contained within the tumor (air bronchogram sign); type III, the bronchus ran at the tumor periphery or was compressed by the tumor; and type IV, no tumor–bronchus relationship was observed. Results Nine (4.1%) PHs were assigned to the central endobronchial group and 209 (95.9%) PHs were assigned to the intraparenchymal group. In the endobronchial group, 1 (11.1%) PH was located in the trachea with the partial stenosis of the trachea, whereas the remaining 8 (88.9%) PHs were located in the lobar or segmental bronchus with the complete occlusion of the corresponding bronchus. In the intraparenchymal group, type IV (147, 70.3%) was most common pattern, followed by type III (54, 25.8%). Type I (8, 3.8%) was rare, and type II was not observed. Conclusion Central endobronchial PHs often obstructed bronchi, whereas only a few intraparenchymal PHs cut off bronchi. No air bronchogram sign was observed.

Analysis of Extrahepatic Obstructive Jaundice Based on Multislice Spiral Computed Tomography

Objective: To evaluate the value of multislice spiral Computed Tomography in the diagnosis and differential diagnosis of extrahepatic obstructive jaundice. Methods: A retrospective analysis was performed on 78 cases of extrahepatic obstructive jaundice confirmed by surgery and clinical analysis. All cases were divided into two groups according to benign and malignant, 41 in benign and 37 in malignant. Twenty of them performed enhanced scanning, and image post-processing was performed. We observe the quantitative and qualitative indicators of CT: the inner diameter of the common bile duct, the extent of intrahepatic bile duct dilation, the length of the obstruction site from the hilar region; the presence or absence of stones, the location of the mass and the mass, the relationship between the mass and the common bile duct, and the degree of mass enhancement. Results: All cases clearly showed the obstruction site, and the difference between the obstruction site and the hepatic hilar length was significant between the benign and malignant groups (P < 0.01); while in the malignant group, there was also a statistical difference between cholangiocarcinoma and pancreatic head cancer and ampulla (P < 0.05). There was no significant difference in the common bile duct inner diameter among the groups (P > 0.05). Conclusions: Multi-slice spiral CT is more accurate in distinguishing the location, etiology, and malignancy of extrahepatic obstructive jaundice. It is of great value in the diagnosis and differential diagnosis of extrahepatic obstructive jaundice.

Analysis of Extrahepatic Obstructive Jaundice Based on Multislice Spiral Computed Tomography

Objective: To evaluate the value of multislice spiral Computed Tomography in the diagnosis and differential diagnosis of extrahepatic obstructive jaundice. Methods: A retrospective analysis was performed on 78 cases of extrahepatic obstructive jaundice confirmed by surgery and clinical analysis. All cases were divided into two groups according to benign and malignant, 41 in benign and 37 in malignant. Twenty of them performed enhanced scanning, and image post-processing was performed. We observe the quantitative and qualitative indicators of CT: the inner diameter of the common bile duct, the extent of intrahepatic bile duct dilation, the length of the obstruction site from the hilar region; the presence or absence of stones, the location of the mass and the mass, the relationship between the mass and the common bile duct, and the degree of mass enhancement. Results: All cases clearly showed the obstruction site, and the difference between the obstruction site and the hepatic hilar length was significant between the benign and malignant groups (P < 0.01); while in the malignant group, there was also a statistical difference between cholangiocarcinoma and pancreatic head cancer and ampulla (P < 0.05). There was no significant difference in the common bile duct inner diameter among the groups (P > 0.05). Conclusions: Multi-slice spiral CT is more accurate in distinguishing the location, etiology, and malignancy of extrahepatic obstructive jaundice. It is of great value in the diagnosis and differential diagnosis of extrahepatic obstructive jaundice.