BACKGROUND An ependymoma is a glial tumor that usually occurs in or near the ventricle,close to the ependyma.It rarely occurs exclusively in the brain parenchyma without being associated with the ventricle.CASE SUMMAR...BACKGROUND An ependymoma is a glial tumor that usually occurs in or near the ventricle,close to the ependyma.It rarely occurs exclusively in the brain parenchyma without being associated with the ventricle.CASE SUMMARY Here,we report a rare case of a cerebellar ependymoma completely located in the brain parenchyma.A previously healthy 32-year-old female with a 1-month history of dizziness was admitted to our hospital.During hospitalization,magnetic resonance imaging of the brain revealed a space-occupying lesion measuring 57 mm×41 mm×51 mm in the right cerebellar hemisphere and inferior cerebellar vermis.The patient underwent surgical resection for the right cerebellar mass.Postoperative pathological examination revealed an ependymoma.At 1 year follow-up,the patient was doing well and showed no recurrence.CONCLUSION We conducted a literature review and summarized three theories regarding ependymomas located exclusively in the brain parenchyma,which are key to the diagnosis of intraparenchymal cerebellar ependymomas.Surgery and postoperative radiotherapy are the primary treatment options for ependymomas.展开更多
Gordon Holmes Syndrome is a rare inherited disease characterized by both neurological and reproductive signs and symptoms. Most patients develop neurologic challenges in early adulthood and cerebellar ataxia occurs as...Gordon Holmes Syndrome is a rare inherited disease characterized by both neurological and reproductive signs and symptoms. Most patients develop neurologic challenges in early adulthood and cerebellar ataxia occurs as the disease progresses. In the majority of patients, hypogonadism is hypogonadotropic but rarely hypergonadotropic. We report a case of a 26-year-old female in Nigeria, with hypergonadotropic hypogonadism and cerebellar atrophy from a non-consanguineous marriage and no family history.展开更多
In many Eastern and Western countries,falling birth rates have led to the gradual aging of society.Older adults are often left alone at home or live in a long-term care center,which results in them being susceptible t...In many Eastern and Western countries,falling birth rates have led to the gradual aging of society.Older adults are often left alone at home or live in a long-term care center,which results in them being susceptible to unsafe events(such as falls)that can have disastrous consequences.However,automatically detecting falls fromvideo data is challenging,and automatic fall detection methods usually require large volumes of training data,which can be difficult to acquire.To address this problem,video kinematic data can be used as training data,thereby avoiding the requirement of creating a large fall data set.This study integrated an improved particle swarm optimization method into a double interactively recurrent fuzzy cerebellar model articulation controller model to develop a costeffective and accurate fall detection system.First,it obtained an optical flow(OF)trajectory diagram from image sequences by using the OF method,and it solved problems related to focal length and object offset by employing the discrete Fourier transform(DFT)algorithm.Second,this study developed the D-IRFCMAC model,which combines spatial and temporal(recurrent)information.Third,it designed an IPSO(Improved Particle Swarm Optimization)algorithm that effectively strengthens the exploratory capabilities of the proposed D-IRFCMAC(Double-Interactively Recurrent Fuzzy Cerebellar Model Articulation Controller)model in the global search space.The proposed approach outperforms existing state-of-the-art methods in terms of action recognition accuracy on the UR-Fall,UP-Fall,and PRECIS HAR data sets.The UCF11 dataset had an average accuracy of 93.13%,whereas the UCF101 dataset had an average accuracy of 92.19%.The UR-Fall dataset had an accuracy of 100%,the UP-Fall dataset had an accuracy of 99.25%,and the PRECIS HAR dataset had an accuracy of 99.07%.展开更多
Background: Accurate determination of gestational age has become important for deciding the appropriate time for termination of the pregnancy as well as to monitor the fetal growth during the entire period of pregnanc...Background: Accurate determination of gestational age has become important for deciding the appropriate time for termination of the pregnancy as well as to monitor the fetal growth during the entire period of pregnancy. Objective: The aim of the study was to assess whether the trans-cerebellar diameter, placental thickness or combining both of them is more accurate for assessment of gestational age in the 3<sup>rd</sup> trimester of pregnancy. Patients and Methods: This is a cross sectional study conducted at outpatient Clinic and Obstetric ward, Ain Shams University Maternity Hospital, over a period of six months from March 2019 to September 2019. One hundred pregnant women were recruited according to inclusion criteria either from outpatient clinic or were admitted in obstetric ward Ain Shams Maternity Hospital to find out the most accurate fetal biometric measurement in the third trimester either trans-cerebellar diameter placental thickness or both compared to reliable LMP (last menstrual period) dates confirmed by crown rump length (CRL) in the first trimester. Results: Trans-cerebellar diameter mean ± SD was 46.0 ± 3.5 with range 38.2 - 51.7. The mean of placental thickness was 39.6 ± 7.1 with range 22.8 - 54.3. Placental thickness had highest determination (0.813) for last menstrual period followed by trans-cerebellar diameter (0.802). Combining trans-cerebellar diameter and placental thickness increased determination (0.902) for last menstrual period. Conclusion: Combined use of trans-cerebellar diameter and placental thickness in the third trimester of pregnancy is a reliable indicator for gestational age in women whose last menstrual period is unreliable or unknown, but placental thickness had higher accuracy than trans-cerebellar diameter.展开更多
目的观察小脑出血不同手术治疗方案的临床疗效。方法本研究为回顾性病例对照研究,收集2018年1月至2022年1月住院手术治疗的小脑出血患者60例,采用枕下骨瓣开颅清除血肿的20例患者设为开颅组;采用锁孔小骨窗入路清除血肿的20例患者设为...目的观察小脑出血不同手术治疗方案的临床疗效。方法本研究为回顾性病例对照研究,收集2018年1月至2022年1月住院手术治疗的小脑出血患者60例,采用枕下骨瓣开颅清除血肿的20例患者设为开颅组;采用锁孔小骨窗入路清除血肿的20例患者设为锁孔组,采用软通道穿刺置管引流术清除血肿的20例患者设为穿刺组;观察3组患者手术时间、术中出血量、术后术区残余血肿量、术后术区再出血例数、术后并发症发生例数、住院天数、重症监护病房时间、术前术后7 d格拉斯哥昏迷评分(GCS)、美国国立卫生院卒中量表评分(NIHSS);术后6个月格拉斯哥预后评分(GOS)。结果3组患者术后7 d GCS、NIHSS评分较术前明显改善(P<0.05);开颅组和锁孔组明显优于穿刺组(P<0.05);锁孔组明显优于开颅组(P<0.05);3组患者术后6个月GOS评分差异无统计学意义(P>0.05)。穿刺组手术时间、术中出血量明显小于开颅组和锁孔组(P<0.05),锁孔组手术时间、术中出血量明显小于开颅组(P<0.05)。穿刺组术后术区残余血肿量、术后术区再出血例数明显多于开颅组和锁孔组(P<0.05)。锁孔组术后并发症发生例数明显小于穿刺组和开颅组(P<0.05)。锁孔组住院天数、症监护病房时间明显小于穿刺组和开颅组(P<0.05),开颅组住院天数、症监护病房时间小于穿刺组(P<0.05)。结论临床上要根据小脑出血患者的具体情况选择手术方式,条件允许的情况下优先选择锁孔小骨窗入路显微镜或内镜下清除血肿,近期疗效、住院天数和重症病房时间均优于骨瓣开颅和穿刺置管引流清除血肿。展开更多
基金Supported by The Sichuan Medical Youth Innovation Research Project,No.Q22044.
文摘BACKGROUND An ependymoma is a glial tumor that usually occurs in or near the ventricle,close to the ependyma.It rarely occurs exclusively in the brain parenchyma without being associated with the ventricle.CASE SUMMARY Here,we report a rare case of a cerebellar ependymoma completely located in the brain parenchyma.A previously healthy 32-year-old female with a 1-month history of dizziness was admitted to our hospital.During hospitalization,magnetic resonance imaging of the brain revealed a space-occupying lesion measuring 57 mm×41 mm×51 mm in the right cerebellar hemisphere and inferior cerebellar vermis.The patient underwent surgical resection for the right cerebellar mass.Postoperative pathological examination revealed an ependymoma.At 1 year follow-up,the patient was doing well and showed no recurrence.CONCLUSION We conducted a literature review and summarized three theories regarding ependymomas located exclusively in the brain parenchyma,which are key to the diagnosis of intraparenchymal cerebellar ependymomas.Surgery and postoperative radiotherapy are the primary treatment options for ependymomas.
文摘Gordon Holmes Syndrome is a rare inherited disease characterized by both neurological and reproductive signs and symptoms. Most patients develop neurologic challenges in early adulthood and cerebellar ataxia occurs as the disease progresses. In the majority of patients, hypogonadism is hypogonadotropic but rarely hypergonadotropic. We report a case of a 26-year-old female in Nigeria, with hypergonadotropic hypogonadism and cerebellar atrophy from a non-consanguineous marriage and no family history.
基金supported by the National Science and Technology Council under grants NSTC 112-2221-E-320-002the Buddhist Tzu Chi Medical Foundation in Taiwan under Grant TCMMP 112-02-02.
文摘In many Eastern and Western countries,falling birth rates have led to the gradual aging of society.Older adults are often left alone at home or live in a long-term care center,which results in them being susceptible to unsafe events(such as falls)that can have disastrous consequences.However,automatically detecting falls fromvideo data is challenging,and automatic fall detection methods usually require large volumes of training data,which can be difficult to acquire.To address this problem,video kinematic data can be used as training data,thereby avoiding the requirement of creating a large fall data set.This study integrated an improved particle swarm optimization method into a double interactively recurrent fuzzy cerebellar model articulation controller model to develop a costeffective and accurate fall detection system.First,it obtained an optical flow(OF)trajectory diagram from image sequences by using the OF method,and it solved problems related to focal length and object offset by employing the discrete Fourier transform(DFT)algorithm.Second,this study developed the D-IRFCMAC model,which combines spatial and temporal(recurrent)information.Third,it designed an IPSO(Improved Particle Swarm Optimization)algorithm that effectively strengthens the exploratory capabilities of the proposed D-IRFCMAC(Double-Interactively Recurrent Fuzzy Cerebellar Model Articulation Controller)model in the global search space.The proposed approach outperforms existing state-of-the-art methods in terms of action recognition accuracy on the UR-Fall,UP-Fall,and PRECIS HAR data sets.The UCF11 dataset had an average accuracy of 93.13%,whereas the UCF101 dataset had an average accuracy of 92.19%.The UR-Fall dataset had an accuracy of 100%,the UP-Fall dataset had an accuracy of 99.25%,and the PRECIS HAR dataset had an accuracy of 99.07%.
文摘Background: Accurate determination of gestational age has become important for deciding the appropriate time for termination of the pregnancy as well as to monitor the fetal growth during the entire period of pregnancy. Objective: The aim of the study was to assess whether the trans-cerebellar diameter, placental thickness or combining both of them is more accurate for assessment of gestational age in the 3<sup>rd</sup> trimester of pregnancy. Patients and Methods: This is a cross sectional study conducted at outpatient Clinic and Obstetric ward, Ain Shams University Maternity Hospital, over a period of six months from March 2019 to September 2019. One hundred pregnant women were recruited according to inclusion criteria either from outpatient clinic or were admitted in obstetric ward Ain Shams Maternity Hospital to find out the most accurate fetal biometric measurement in the third trimester either trans-cerebellar diameter placental thickness or both compared to reliable LMP (last menstrual period) dates confirmed by crown rump length (CRL) in the first trimester. Results: Trans-cerebellar diameter mean ± SD was 46.0 ± 3.5 with range 38.2 - 51.7. The mean of placental thickness was 39.6 ± 7.1 with range 22.8 - 54.3. Placental thickness had highest determination (0.813) for last menstrual period followed by trans-cerebellar diameter (0.802). Combining trans-cerebellar diameter and placental thickness increased determination (0.902) for last menstrual period. Conclusion: Combined use of trans-cerebellar diameter and placental thickness in the third trimester of pregnancy is a reliable indicator for gestational age in women whose last menstrual period is unreliable or unknown, but placental thickness had higher accuracy than trans-cerebellar diameter.
文摘目的观察小脑出血不同手术治疗方案的临床疗效。方法本研究为回顾性病例对照研究,收集2018年1月至2022年1月住院手术治疗的小脑出血患者60例,采用枕下骨瓣开颅清除血肿的20例患者设为开颅组;采用锁孔小骨窗入路清除血肿的20例患者设为锁孔组,采用软通道穿刺置管引流术清除血肿的20例患者设为穿刺组;观察3组患者手术时间、术中出血量、术后术区残余血肿量、术后术区再出血例数、术后并发症发生例数、住院天数、重症监护病房时间、术前术后7 d格拉斯哥昏迷评分(GCS)、美国国立卫生院卒中量表评分(NIHSS);术后6个月格拉斯哥预后评分(GOS)。结果3组患者术后7 d GCS、NIHSS评分较术前明显改善(P<0.05);开颅组和锁孔组明显优于穿刺组(P<0.05);锁孔组明显优于开颅组(P<0.05);3组患者术后6个月GOS评分差异无统计学意义(P>0.05)。穿刺组手术时间、术中出血量明显小于开颅组和锁孔组(P<0.05),锁孔组手术时间、术中出血量明显小于开颅组(P<0.05)。穿刺组术后术区残余血肿量、术后术区再出血例数明显多于开颅组和锁孔组(P<0.05)。锁孔组术后并发症发生例数明显小于穿刺组和开颅组(P<0.05)。锁孔组住院天数、症监护病房时间明显小于穿刺组和开颅组(P<0.05),开颅组住院天数、症监护病房时间小于穿刺组(P<0.05)。结论临床上要根据小脑出血患者的具体情况选择手术方式,条件允许的情况下优先选择锁孔小骨窗入路显微镜或内镜下清除血肿,近期疗效、住院天数和重症病房时间均优于骨瓣开颅和穿刺置管引流清除血肿。
