目的：探讨CT图像计分与格拉斯哥评分（Glasgow coma scale,GCS）及临床预后之间的关系。方法：129例颅脑损伤病人行头颅CT连续扫描,根据CT显示颅内结构改变计分,分为轻型（≤5分）,中型（6~10分）和重型（≥11分）。结合GCS及临床转归...目的：探讨CT图像计分与格拉斯哥评分（Glasgow coma scale,GCS）及临床预后之间的关系。方法：129例颅脑损伤病人行头颅CT连续扫描,根据CT显示颅内结构改变计分,分为轻型（≤5分）,中型（6~10分）和重型（≥11分）。结合GCS及临床转归进行临床对照分析。结果：2种评分之间比较差异无统计学意义（χ2=0.44,P=0.80）,CT图像计分各型之间的预后差异有统计学意义（χ2=4.69,P=0.03）。结论：CT图像计分与GCS评分在颅脑损伤病情分级存在相关性,能较好评估颅脑损伤的预后,为临床判断预后提供重要的客观依据。展开更多
Automatic kidney segmentation from abdominal CT images is a key step in computer-aided diagnosis for kidney CT as well as computeraided surgery. However, kidney segmentation from CT images is generally performed manua...Automatic kidney segmentation from abdominal CT images is a key step in computer-aided diagnosis for kidney CT as well as computeraided surgery. However, kidney segmentation from CT images is generally performed manually or semi-autornatically because of gray levels similarities of adjacent organs/tissues in abdominal CT images. This paper presents an efficient algorithm for segmenting kidney from serials of abdominal CT images. First, we extracted estimated kidney position （EKP） according to the statistical geometric location of kidney within the abdomen. Second, we analyzed the intensity distribution of EKP for several abdominal CT images and exploit an adaptive threshold searching algorithm to eliminate many other organs/tissues in the EKP. Finally, a novel region growing approach based on labeling is used to obtain the fine kidney regions. Experimental results are comparable to those of manual tracing radiologist and shown to be efficient.展开更多
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
目的探讨超声测量视神经鞘直径、神经元特异性烯醇化酶对颅脑外伤患者早期病情评估的价值。方法选取2020年1-8月在徐州医科大学附属医院ICU、神经外科治疗的颅脑外伤患者90例,所有患者入院后立即评估格拉斯哥昏迷评分(glasgow coma scal...目的探讨超声测量视神经鞘直径、神经元特异性烯醇化酶对颅脑外伤患者早期病情评估的价值。方法选取2020年1-8月在徐州医科大学附属医院ICU、神经外科治疗的颅脑外伤患者90例,所有患者入院后立即评估格拉斯哥昏迷评分(glasgow coma scale,GCS),采血检测神经元特异性烯醇化酶(neuron specific rylenol,NSE),床旁超声检测视神经鞘直径(optic nerve sheath diameter,ONSD),并行头颅CT检查和Rotterdam CT评分。根据GCS评分将患者分为轻度、中度及重度组,根据头颅CT图像评分将患者分为低分、中分及高分组。分别比较三组间ONSD、NSE。结果ONSD与GCS、Rotterdam CT计分相关性均良好(r=-0.474,P<0.001;r=0.647,P<0.001)。根据GCS评分将患者分为轻度、中度和重度三组,中度组或者重度组与轻度组间平均ONSD比较差异有统计学意义(P<0.05),中度组与重度组间ONSD比较差异无统计学意义(P>0.05)。三组间任意两组平均NSE比较差异均有统计学意义(P<0.05)。根据Rotterdam CT评分,低分、中分、高分组三组间任意两组平均ONSD、NSE比较差异均有统计学意义(P<0.05)。结论超声测量视神经鞘直径、NSE有助于早期判断颅脑外伤患者病情严重程度,ONSD与GCS评分和头颅CT图像评分相关性良好。展开更多
文摘目的：探讨CT图像计分与格拉斯哥评分（Glasgow coma scale,GCS）及临床预后之间的关系。方法：129例颅脑损伤病人行头颅CT连续扫描,根据CT显示颅内结构改变计分,分为轻型（≤5分）,中型（6~10分）和重型（≥11分）。结合GCS及临床转归进行临床对照分析。结果：2种评分之间比较差异无统计学意义（χ2=0.44,P=0.80）,CT图像计分各型之间的预后差异有统计学意义（χ2=4.69,P=0.03）。结论：CT图像计分与GCS评分在颅脑损伤病情分级存在相关性,能较好评估颅脑损伤的预后,为临床判断预后提供重要的客观依据。
基金National Natural Science Foundations of China (No.60601025, No.60701022, No.30770561)
文摘Automatic kidney segmentation from abdominal CT images is a key step in computer-aided diagnosis for kidney CT as well as computeraided surgery. However, kidney segmentation from CT images is generally performed manually or semi-autornatically because of gray levels similarities of adjacent organs/tissues in abdominal CT images. This paper presents an efficient algorithm for segmenting kidney from serials of abdominal CT images. First, we extracted estimated kidney position （EKP） according to the statistical geometric location of kidney within the abdomen. Second, we analyzed the intensity distribution of EKP for several abdominal CT images and exploit an adaptive threshold searching algorithm to eliminate many other organs/tissues in the EKP. Finally, a novel region growing approach based on labeling is used to obtain the fine kidney regions. Experimental results are comparable to those of manual tracing radiologist and shown to be efficient.
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.
