Objective To evaluate the application of tendency-oriented perimetry (TOP) in detecting the visual function of glaucoma. Methods The traditional threshold perimetry (Normal/Normal strategy) and TOP (TOP/Normal strategy) carried out by Octopus 101 perimetry were used to examine the visual field of 20 normal subjects (20 eyes), 32 cases (32 eyes) of primary open-angle glaucoma (POAG), and 14 cases (14 eyes) of suspected POAG, respectively. The visual field outcomes, indices, point by point threshold variability and defective points of the two perimetries were compared and analysed. Results The negative rate of TOP was 90% in normal subjects. The positive rate of TOP was 75% in POAG , and 100% in middle and late stage of POAG. The visual field indices of two perimetries were positively correlated, with mean sensitivity (MS) of r=0.9335, mean defect (MD) of r=0.9189, and loss variance (LV) of r=0.9621. The point by point threshold variability and defective points of TOP were higher than those of traditional threshold perimetry, but the difference between the two perimetries was not significant (P=0.2019, P=0.4448). Conclusion The visual field indices of TOP and traditional threshold perimetry are positively correlated. The sensitivity and reproducibility of TOP are high in detecting the visual function of middle and late stage of POAG. (Chin J Ocul Fundus,Dis, 2002, 18: 269-272)
Objective To investigate the characteristics of ultrasonogram of eyes with silicon oil tamponade. Methods Forty-seven patients (47 eyes) who had undergone the operation of silicon-oil removing were examined by A-(to determine the length of ocular axis) and B-scan before and after the operation respectively. The length of ocular axis and cubage of vitreous chamber were detected and the characteristics of the ultrasonograms were observed according to the default parameters of ultrasonograph. Results The results of A-scan showed that the preoperative axial length was 1.465 times of the postoperative one in the eyes without lens, and 1.284 times in eyes with lens; after modified the parameter according to the acoustic velocity, the preoperative axial length was (0.78±0.34) mm longer than the postoperative one in the eyes without lens, and (0.56±0.32) mm in eyes with lens. The results of A-scan showed that the cubage of vitreous chamber enlarged obviously in eyes with silicon oil tamponade, and the acoustic features included complete filling and partial filling according to the amount of silicon oil. Several arc echoes at the posterior segment of eye were detected in the silicon-oil-filling eyes with retinal detachment. Conclusion In the silicon-oil-filling eyes with lengthened ocular axis, the characteristics of B-scan images are affected by acoustic velocity through silicon oil, the amount of silicon oil capacity and the emulsification of silicon oil. (Chin J Ocul Fundus Dis，2004，20：349-351)
Objective To study the significance of detection the short-term fluctuation (SF) of macular light threshold detected by Octopus-123 automatic perimeter in suspected early age-related macular dege-neration (AMD). Methods SF of macular light sensitivity, Amsler chart and central visual acuity were examined in 51 patients(66 eyes) with suspected early AMD group and in 32 patients (40 eyes) in the control group. Results SF were significantly different in suspected early AMD group and control group. SF was more sensitive than the examination of central visual acuity and Amsler chart. SF was related to the quantity, location and quality of drusen. Conclusion Visual function of some suspected early AMD patients with drusen may be damaged, though the central visual acuity appears normal. (Chin J Ocul Fundus Dis, 2002, 18: 119-120)
ObjectiveTo explore the feasibility of homemade domestic breast palpation imaging (BPI) instead of clinical breast palpation examination (CBE) for screening breast masses. MethodsThe patients who received breast ultrasonography (BUS), BPI examinations and CBE in the Sichuan Cancer Hospital from March 2022 to September 2022 were retrospectively collected. The result of BUS examination was used as the criteria to compare the efficiency and difference between the BPI examination and CBE in detecting breast masses. The effects of the patients’ body mass index, breast volume, tumor location, benign and malignant tumor, and maximum tumor diameter on the accuracy of breast tumor detection by BPI system were further analyzed. ResultsA total of 102 patients were included in this study. Among the 90 patients with breast mass detected by BUS, 76 cases were detected by BPI and 51 cases were detected by CBE. In the 12 patients without tumor mass detected by BUS, only 11 cases patients without tumor mass were detected by BPI and CBE. The sensitivity and accuracy of breast tumor mass screening by the BPI were higher than those by the CBE (84.4% vs. 56.7%, 85.2% vs. 60.7%, respectively), and the specificity was similar (91.6%, both). The area under the receiver operating characteristic curve (95% confidence interval, 95%CI) of BPI and CBE for screening breast masses were 0.903 (0.791, 0.970) and 0.799 (0.747, 0.851), respectively. The former was higher than the latter (Z=2.494, P=0.013). The consistencies were moderate (Kappa=0.518, P<0.001), general (Kappa=0.204, P=0.002), moderate (Kappa=0.518, P<0.001) between the BPI and BUS, between CBE and BUS, and between BPI and CBE for screening breast masses, respectively. The results of multivariate analysis of binary logistics regression indicated that the benign tumor mass was not easily detected [OR (95%CI） was 9.600（1.328, 69.400), P=0.025] and the tumor mass with breast volume ＜350 mL was easily detected [OR (95%CI） was 0.157 (0.030, 0.818), P=0.028], the diameter of tumor mass had no obvious influence on breast tumor mass screening by the BPI. ConclusionAccording to the preliminary results of this study, BPI can improve the sensitivity of detecting breast masses and make up for the lack of objective records of CBE, but BPI cannot replace CBE at present.
ObjectiveTo explore the plan-do-check-action (PDCA) circulation method in reducing errors in general inspection items of health examination and to improve the quality of examination. MethodsUsing PDCA circulation method, the reasons of errors in general items of health examination for 39 individuals examinied between August and December 2010 were analyzed. Rectification was carried out according to the reasons, and the differences in the incidence rate of errors in general items of health examination before (from August to December, 2010) and after the rectification was (from Auguest to December, 2011) was compared. ResultsAfter the rectification, the incidence of errors in general items of health examination (0.08%) was significantly lower than that before the rectification (0.45%) (P<0.05). ConclusionPDCA circulation method can effectively reduce the incidence of errors in general items of health examination thus may ensure the medical quality.
目的 探讨胎儿左心发育不良综合征产前超声诊断方法，提高诊断准确性。 方法 常规产前超声检查方法，应用四腔心切面和三血管气管平面进行胎儿心脏畸形筛查。 结果 2006年1月-2008年12月发现4例左心发育不良综合征，3例并发心内畸形（2例右室双出口及1例室缺），1例并发心外畸形（Dandy-Walker畸形及单脐动脉）。 结论 应用四腔心切面和三血管气管平面筛查心室发育不良简单易行，准确性高。
目的:探讨B超监测下输尿管镜治疗输尿管结石的临床疗效及可行性。方法:2007年12月~2008年12月采用B超监测下输尿管镜治疗输尿管结石患者34例,结石位于上段4例,中段11例,下段19例。结果:一次性碎石治愈者33例,一次性碎石成功率97%,手术时间(40±15)min,术后2~7天排尽结石,术后住院平均时间3.5(2～5)天。结论:B超监测下输尿管镜治疗输尿管结石对于手术操作者易于随时动态观察结石情况,对于大于0.4 cm的碎石块无遗漏,增加术中一次碎石成功率,可行性高。