4.Effect of 23 G minimally invasive vitrectomy without irrigation in cataract ultrasonic phacoemulsification and trabeculectomy of phakic malignant glaucoma
Zhan-Feng, WANG ; Chang-Qin, XU
International Eye Science 2016;16(10):1879-1882
AIM: To investigate the efficacy of 23G minimally vitrectomy without irrigation in cataract phacoemulsification and trabeculectomy of malignant glaucoma, and to analyze such compound operative procedures for phakic malignant glaucoma.
●METHODS:A total of 21 phakic malignant glaucoma patients (21 eyes) underwent anterior vitrectomy without irrigation by using 23G vitrectomy. During surgical course phacoemulsification with anterior and posterior continuous circular capsulorhexis, trabeculectomy combined with iridectomy would be completed. lntraocular pressure, anterior chamber depth changes and postoperative complications were observed after the operation.
●RESULTS:ln the three-month follow-up, intraocular pressures were reduced from ( 57. 18 ± 6. 18 ) mmHg to (16. 15 ± 2. 43 ) mmHg, there was statistical difference compared with pre - operation ( P < 0. 001 ). The preoperative anterior chamber depth (ACD) was (0. 88± 0. 25) mm, the postoperative ACD was (2. 44±0. 37) mm 3mo later, there were significant difference (P<0. 001). The best corrected visual acuity improved significantly, no serious postoperative complication appeared.
● CONCLUSION: The compound surgical method of anterior vitrectomy combined with phacoemulsifier and trabeculectomy can effectively treat phakic malignant glaucoma. Early diagnosis and early compound surgery may effectively reduce the intraocular pressure of malignant glaucoma.
5.Determination of Fuyinjie Compound Huangsong Lotion by GC-MS
Jieping QIN ; Xu FENG ; Lingfang YANG
Chinese Traditional Patent Medicine 1992;0(09):-
AIM: To analyze the chemical composition and their relative contents of Fuyinjie Compound Huangsong Lotion. METHODS: A capillary column HP-5 MS was used. The column temperature was controlled by a program and the MS analysis was performed with EI and quadrupole mass analyzer. The chemical composition was identified by NIST98 searching and mass spectra comparing, and their relative contents were determined by using normalization method of chromatographic peak areas. RESULTS: There were 39 components found and 31 composed of more than 90% separated components were identified. CONCLUSION: The GC-MS is a simple, rapid and sensitive method for the chemical composition analysis of Fuyinjie Compound Huangsong Lotion.
6.Improved Quality Standard for Kangshiming Mixtures
Yue XU ; Feng CAI ; Qin ZHANG ; Ting HONG ; Yanfeng XU
China Pharmacist 2014;(2):218-220
Objective:To improve the quality standard for Kangshiming mixtures. Methods:The identification of Angelicae Sinen-sis Radix, Astragali Radix and Phellodendri Chinensis Cortex was carried out by TLC. The contents of puerarin and paeoniflorin in the preparations were determined by HPLC. Results:The spots displayed in TLC were clear without interference from the negative control. The linear range for puerarin was 1. 64-49. 20μg·ml-1(r=0. 999 9) and 4. 22-63. 30μg·ml-1(r=0. 999 6) for paeoniflorin. The average recovery was 99. 63%(RSD=2. 14%,n=9) and 99. 05%(RSD=2. 70%,n=9) for puerarin and paeoniflorin, respectively. Conclusion:The method is accurate, reliable and specific, and can be used in the quality control of Kangshiming mixtures.
7.Ultrastructure changes of osteosarcoma cells inactivated by alcohol in different concentrations
Feng NIU ; Guishan GU ; Yi ZHAO ; Daming QIN ; Xinxiang XU
Journal of Jilin University(Medicine Edition) 2001;27(1):49-51
Objective:To study the ultrastructure changes of osteosarcoma cells(OS-732) inactivated by alcohol of two different concentrations and clinical application value.Methods:Osteosarcoma cells(OS-732) were inactivated by 75% and 95% alcohol and observed by light and electron microscope.And its viability was detected by MTT method. Results:Cell internal structure changed significantly and irreversible damage formed. MTT method proved that inactivated cells had no viability.Conclusion:These two inactivation methods were effective. Cell internal enviroment was damaged very seriously and cell was led to death. These two inactivation methods could provide choices for clinical limb protective operation.
9.2D, 3D Rigid Registration Algorithm Base on CUDA
Jian XU ; An QIN ; Xiaolin MENG ; Wufan CHEN ; Qianjin FENG
Chinese Journal of Medical Physics 2010;27(2):1721-1725,1730
Objective: Real time medical image registration technique is one of the key techniques in image based surgery navi-gation system. While in medical image analysis, image registration is usually a very time-cousuming operation, and this is not conducive to clinical real-time requirements. This paper studies and realizes the acceleration of the process of image registra-tion. Methods: In order to improve the regisWation rate, in this paper, we propose a new technology which is based on CUDA (Compute Unified Device Architecture) programming model to accelerate the process of registration in hardware, using paral-lel methods to achieve pixel coordinate transformation, linear interpolation, and calculate the corresponding pixel gray value residuals. Results: The registration is up to the sub-pixel level and the GPU-based registration is dozens or even hundreds of times faster than CPU-based registration. Conclusions: This method greatly enhances the speed of rigid registration without changing the alignment accuracy.