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( Marlon De Freitas Fonseca ),( Lilian Carvalho Aragao ),( Felipe Ventura Sessa ),( Jose Anacleto Dutra De Resende Jr ),( Claudio Peixoto Crispi ) 대한산부인과학회 2018 Obstetrics & Gynecology Science Vol.61 No.5
Objective To assess the correlation between different pain symptoms and different domains of women's health-related quality of life (HRQoL). Methods Seventy-seven women with deep infiltrating endometriosis were successively enrolled between June 2011 and August 2013 while being prepared to undergo laparoscopy due to pain and/or infertility. We quantified the intensities of dysmenorrhea, deep dyspareunia, chronic pelvic pain, and dyschezia (menstrual and non-menstrual) using a 11-point visual analog scale (VAS: 0-10) and the validated full versions of the Short Form 36 (SF36) and Endometriosis Health Profile (EHP30) questionnaires to assess HRQoL. The pain symptoms were considered simultaneously in a hierarchical agglomerative clustering method (exploratory multivariate approach) and the associations among scores were tested by bivariate correlation. Results Dysmenorrhea showed the lowest similarity on to the multivariate cluster analysis and no statistically significant correlation with the other pain symptoms: deep dyspareunia (P=0.244), chronic pelvic pain (P=0.108), menstrual dyschezia (P=0.238), and non-menstrual dyschezia (P=0.380). Dysmenorrhea and chronic pelvic pain were the main symptoms correlated with all domains of the SF36 and the EHP30 (core instrument) questionnaires (P<0.05). Conclusion Dysmenorrhea and chronic pelvic pain were independent factors associated with HRQoL.
A Tool Box to Evaluate the Phased Array Coil Performance Using Retrospective 3D Coil Modeling
Marlon Perez,Daniel Hernandez,Eric Michel,조민형,이수열 대한자기공명의과학회 2014 Investigative Magnetic Resonance Imaging Vol.18 No.2
Purpose : To efficiently evaluate phased array coil performance using a software tool box with which we can make visualcomparison of the sensitivity of every coil element between the real experiment and EM simulation. Materials and Methods: We have developed a C++- and MATLAB-based software tool called Phased Array Coil Evaluator(PACE). PACE has the following functions: Building 3D models of the coil elements, importing the FDTD simulation results,and visualizing the coil sensitivity of each coil element on the ordinary Cartesian coordinate and the relative coil positioncoordinate. To build a 3D model of the phased array coil, we used an electromagnetic 3D tracker in a stylus form. Aftermaking the 3D model, we imported the 3D model into the FDTD electromagnetic field simulation tool. Results: An accurate comparison between the coil sensitivity simulation and real experiment on the tool box platform hasbeen made through fine matching of the simulation and real experiment with aids of the 3D tracker. In the simulationand experiment, we used a 36-channel helmet-style phased array coil. At the 3D MRI data acquisition using the spoiledgradient echo sequence, we used the uniform cylindrical phantom that had the same geometry as the one in the FDTDsimulation. In the tool box, we can conveniently choose the coil element of interest and we can compare the coil sensitivitieselement-by-element of the phased array coil. Conclusion: We expect the tool box can be greatly used for developing phased array coils of new geometry or for periodicmaintenance of phased array coils in a more accurate and consistent manner.