放射性核素阴囊显像

Radionuclide scrotal imaging

作了２４例阴囊血流和血池显像，其中睾丸扭转６例、睾丸和附睾炎症１２例、寻找隐睾２例、正常４例。弹丸式注射９９ｍＴＯ４－５５５—７４０ＭＢｑ作动态显像，每２ｓ－帧，共采集２００ｓ，然后立即做静态血池显像。睾丸扭转的病人患例中心部分呈放射性缺损，睾丸炎症病人则看到患侧显示放射性弥漫性增加．分别在睾丸的正常侧、患侧及相对应的大腿内侧各取一相同大小的感兴趣区（ＲＯＩ），然后分别计算三对ＲＯＩ的计数比值：正常侧大腿内侧，患侧／大腿内侧和正常侧／患侧，睾丸扭转组和炎症组分别为１．１８、０．７５、１．６１和１．６８、２．５７、０．６０，对临床诊断有一定的参考价值。

cases of scrotal blood now and pool imaging,among them 6 testicular torsion,12 testitis or epididythitis,2 undescended testis and 4 normals were studied.A bolus of 99mTcO4-555-740MBq was given and then dynamically imaging,2s per frame,totally 200s acquisited,afterwards the static imaging was taken immediately.For testicular torsion patients,the diseased testicle showed decreased activity, whereas in testitis patients,the testicle showed increased perfusion. Regions of interest(ROI)were drawn in the normal and abnormal testicle and the respective inner side of leg,and then three counting ratio,i.e.normal testicle/leg,abnormal testicle/leg and normal/abnormal testicle calculated.The three ratios in testicular torsion and testitis group were 1.18,0.75,1.61 and 1.68,2.57,0.60 respectively. It was noticed that all these values have some reference for clinical diagnosis of testicular diseases.