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Magnetic resonance imaging findings of spontaneous pyomyoma in a premenopausal woman managed with myomectomy:A case report
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作者 david martínez Gustavo E Sanchez +5 位作者 Jhonatan Gómez Luis J Sonda Luis D Suárez Carlos S López Juan J Vega Daniel A Cepeda 《World Journal of Radiology》 2023年第3期83-88,共6页
BACKGROUND Acute fibroid complications are rare.However,failure to recognize and treat acute complications expeditiously when they occur can lead to catastrophic,even deadly,complications.Pyomyoma is a rare but potent... BACKGROUND Acute fibroid complications are rare.However,failure to recognize and treat acute complications expeditiously when they occur can lead to catastrophic,even deadly,complications.Pyomyoma is a rare but potentially fatal condition resulting from infarction and infection of a fibroid through bacterial seeding and direct,hematogenous,or lymphatic dissemination.Even though the diagnosis is established through clinical and laboratory findings,imaging is an important complementary method to support the suspected diagnosis.CASE SUMMARY Herein,we report a case of a pyomyoma in a nulliparous woman previously diagnosed with uterine leiomyomatosis according to ultrasound findings.The patient had previously attended the emergency room due to hypogastric pain unresponsive to analgesics.After a week of persistent pain,she developed sepsis without any identifiable foci.Magnetic resonance imaging revealed findings compatible with uterine myomatosis with red degeneration,and a possible diagnosis of a pyomyoma was made according to the imaging findings along with the patient’s clinical features.We decided to perform myomectomy(which is an infrequently performed surgical treatment due to the procedure’s intrinsic implic-ations)due to the patient’s desire to preserve fertility.Histopathologic results revealed a uterine leiomyoma with coagulative and liquefactive necrosis,while the tissue culture showed gram-negative cocci bacteria,which were successfully treated using antibiotic therapy.The patient’s health status improved after several days.CONCLUSION The main diagnostic tools to evaluate pyomyomas are the clinical and laboratory findings as well as tissue cultures.Nonetheless,magnetic resonance imaging can help to corroborate these findings as well as to better characterize myomas with its different complications. 展开更多
关键词 Diffusion-weighted images Apparent diffusion coefficient LEIOMYOMA SEPSIS Magnetic resonance imaging Case report
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Automatic Mexican Sign Language Recognition Using Normalized Moments and Artificial Neural Networks 被引量:1
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作者 Francisco Solís david martínez Oscar Espinoza 《Engineering(科研)》 2016年第10期733-740,共8页
This document presents a computer vision system for the automatic recognition of Mexican Sign Language (MSL), based on normalized moments as invariant (to translation and scale transforms) descriptors, using artificia... This document presents a computer vision system for the automatic recognition of Mexican Sign Language (MSL), based on normalized moments as invariant (to translation and scale transforms) descriptors, using artificial neural networks as pattern recognition model. An experimental feature selection was performed to reduce computational costs due to this work focusing on automatic recognition. The computer vision system includes four LED-reflectors of 700 lumens each in order to improve image acquisition quality;this illumination system allows reducing shadows in each sign of the MSL. MSL contains 27 signs in total but 6 of them are expressed with movement;this paper presents a framework for the automatic recognition of 21 static signs of MSL. The proposed system achieved 93% of recognition rate. 展开更多
关键词 Mexican Sign Language Automatic Sign Language Recognition Normalized Moments Computer Vision System
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Mexican Sign Language Recognition Using Jacobi-Fourier Moments
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作者 Francisco Solís Carina Toxqui david martínez 《Engineering(科研)》 2015年第10期700-705,共6页
The present work introduces a system for recognizing static signs in Mexican Sign Language (MSL) using Jacobi-Fourier Moments (JFMs) and Artificial Neural Networks (ANN). The original color images of static signs are ... The present work introduces a system for recognizing static signs in Mexican Sign Language (MSL) using Jacobi-Fourier Moments (JFMs) and Artificial Neural Networks (ANN). The original color images of static signs are cropped, segmented and converted to grayscale. Then to reduce computational costs 64 JFMs were calculated to represent each image. The JFMs are sorted to select a subset that improves recognition according to a metric proposed by us based on a ratio between dispersion measures. Using WEKA software to test a Multilayer-Perceptron with this subset of JFMs reached 95% of recognition rate. 展开更多
关键词 MEXICAN SIGN LANGUAGE Jacobi-Fourier MOMENTS Digital Image Processing
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INMA-Sabadell队列中孕期双酚A及邻苯二甲酸酯暴露与胎儿发育的超声测量(续完) 被引量:3
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作者 Maribel Casas Damaskini Valvi +14 位作者 Ana Ballesteros-Gomez Mireia Gascon Mariana F.Fernández Raquel Garcia-Esteban Carmen I?iguez david martínez Mario Murcia Nuria Monfort Noelia Luque Soledad Rubio Rosa Ventura Jordi Sunyer martine Vrijheid 袁亚群(翻译) 金泰廙(审校) 《环境与职业医学》 CAS CSCD 北大核心 2016年第9期919-921,共3页
暴露于ΣMWPm与任何胎儿大小或胎儿发育结局(见补充材料,表8)及所评估的出生结局(表2及补充材料表S7)都没有显著相关性。代谢物MnBP与12-20孕周HC增长降低有显著相关性(-4.88%;95%CI:-8.36,-1.36),且与EFW增长减低也有... 暴露于ΣMWPm与任何胎儿大小或胎儿发育结局(见补充材料,表8)及所评估的出生结局(表2及补充材料表S7)都没有显著相关性。代谢物MnBP与12-20孕周HC增长降低有显著相关性(-4.88%;95%CI:-8.36,-1.36),且与EFW增长减低也有显著相关性(-4.32%;95%CI:-8.33,-0.27)(图3及补充材料表S8)。 展开更多
关键词 胎儿发育 邻苯二甲酸酯 超声测量 双酚A 中孕期 队列 相关性 出生结局
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INMA-Sabadell队列中孕期双酚A及邻苯二甲酸酯暴露与胎儿发育的超声测量(待续) 被引量:1
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作者 Maribel Casas Damaskini Valvi +14 位作者 Ana Ballesteros-Gomez Mireia Gascon Mariana F.Fernández Raquel Garcia-Esteban Carmen I?iguez david martínez Mario Murcia Nuria Monfort Noelia Luque Soledad Rubio Rosa Ventura Jordi Sunyer martine Vrijheid 袁亚群 金泰廙 《环境与职业医学》 CSCD 北大核心 2016年第8期820-825,共6页
[背景]产前暴露于双酚A(BPA)及邻苯二甲酸酯会影响胎儿发育;然而该类研究很少,且得出的结果不一致。[目的]对一个西班牙出生队列中488对母婴进行研究,评估产前暴露于BPA及邻苯二甲酸酯是否与胎儿发育相关。[方法]检测第一和第三孕... [背景]产前暴露于双酚A(BPA)及邻苯二甲酸酯会影响胎儿发育;然而该类研究很少,且得出的结果不一致。[目的]对一个西班牙出生队列中488对母婴进行研究,评估产前暴露于BPA及邻苯二甲酸酯是否与胎儿发育相关。[方法]检测第一和第三孕期两次尿液样本中BPA及8种邻苯二甲酸酯[4种邻苯二甲酸二(2-乙基己基)酯代谢物(DEHPm),邻苯二甲酸单卞酯(MBzP)以及3种低分子量邻苯二甲酸酯代谢物(LMWPm)]。另外,估计股骨长度(FL)、头围(HC)、腹围(AC)、双顶径(BPD)的生长曲线,估计孕期(12—20周,20~34周)的胎儿体重,并测量出生体重、出生长度、出生头围以及胎盘重量。[结果]总体上,结果并不支持孕期暴露于BPA或DEHPm与胎儿发育参数相关。产前MBzP暴露与20~34孕周的FL呈正相关,MBzP浓度每增加一倍,平均FL增加3.7%(95%CI:0.75,6.63%)。MBzP与男婴出生体重呈正相关(48g;95%CI:6,90),但在女婴中没有相关性(-27g;95%CI:-79,25)(交互作用P=0.04)。LMWPm邻苯二甲酸单丁酯(MnBP)与12—20孕周的HC呈负相关[平均HC降低了4.88%(95%CI:-8.36,-1.36%)]。[结论]本研究首次将暴露生物标志重复测量值与胎儿期多种发育参数相结合,发现暴露于BPA或邻苯二甲酸酯与胎儿发育不相关。邻苯二甲酸酯代谢物MBzP与MnBP与部分胎儿发育参数相关,但这些结果还需要重复验证。 展开更多
关键词 邻苯二甲酸酯 胎儿发育 超声测量 出生队列 中孕期 双酚A 邻苯二甲酸二(2-乙基己基)酯 产前暴露
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