Objective To evaluate the clinical significance of judgement about rheumatoid arthritis(RA)carpal subsidence by carpal height ratio(CHR).Methods The materials which have been maken definite diagnosis,including pair of carpal films of 40 cases,were devided into 6 groups to measure carpal height ratio by X-ray stage and deviation of metacarpal and phalanx toward ulna side.Results Early stage ? 36 =0.512,Middle stage ? 26 =0.514,Later stage? 18 =0.455.The group without deviation toward ulna side ? 69 =0.502,the group which deviation was smaller than 15?:? 10 =0.484,the group which deviation was larger than 15 ?:? 1 =0.450.Conclusion Carpal height ratio(CHR)has very importmant clinical significance to study the development and evolution of rheumatoid arthritis(RA)carpal subsidence.

Objective To study the relativity between pathology and CT diagnosis and CT classified types of the golioma of the brain.Methods Seventy cases of golioma confirmed by CT diagnosis and pathology by way of non-contrast CT scanning and enhanced scans were analysed in comparison the results of the pathology and CT appearances.Results (1)The accuracy rate of CT diagnosis was 85.7%;(2)having pointed out the CT classified types of the golioma of the brain a acording of CT appearances comibined with shape.Type Ⅰ was(low-tensity,non-enhancement types)16 cases,which can be only seen in Ⅰ and Ⅱ grade of astrocytoma oligodendroglioma,and the latter was often characterized by bending stripe-like calcification or cluster dot-like calcification,both of which occupy 33% of the total (3/9).Type Ⅱ was (ring-like enhanced patterns)13 cases,which often appeared in Ⅱ?Ⅲ?Ⅳ grade astrocytoma,charactenied by parietal-node which took up 53.8%(7/13).The pathology changes were mainly caused by the internal neceosis and a few by cystic changes.Type Ⅲ(nodular or mass-like enhancement) in 31 cases revealed by various types of goliomsas,which were typical CT appearances of medulloblastoma and ependymoma.Type Ⅳ(mixed types)in 10 cases had showed the CT appearances of malignant goliomas.(3)The results indicate that no or slight edema and mass effect as well as intensification were mainly seen in Ⅰ and Ⅱ grade astrocytomas,Ⅲ and Ⅳ grade astrocytomas were classified as the less serious and the serious both of which had distinctive differences.(4)Analyse the CT appearances of brain golioma in terms of tumor cytology had provided the pathology evidences for CT classified patterns.Conclusion CT appearances and CT classified patterns can reflect some pathologie characteristics and provide an important reference for astrocytoma pathology grading.