Splenic hamartoma is a rare benign tumor,and although minimally invasive surgery may be suitable for this condition,there have only been 2 previous reports of laparoscopic surgery.Here we report the third case of sple...Splenic hamartoma is a rare benign tumor,and although minimally invasive surgery may be suitable for this condition,there have only been 2 previous reports of laparoscopic surgery.Here we report the third case of splenic hamartoma managed by laparoscopic splenectomy.A 37-year-old male was incidentally diagnosed by abdominal ultrasonography with a hypoechoic mass measuring 2.5 cm × 2.4 cm in the spleen.Color Doppler sonography showed multiple flow signals within the mass and contrast-enhanced computed tomography revealed strong enhancement of the lesion.On T1-and T2-weighted magnetic resonance images,the splenic mass was demonstrated as isointense and hyperintense respectively.Although a malignant tumor could not be ruled out,a hand-assisted laparoscopic splenectomy was performed because the splenic mass was limited in size and had not invaded adjacent organs.The pathological diagnosis was splenic hamartoma.The postoperative course was uneventful and the patient was discharged by the seventh postoperative day.Although splenic hamartomas have some specific imaging features,more reports and analyses of these cases are required to increase the reliability of the diagnosis and management.Hand-assisted laparoscopic splenectomy may play a pivotal role in the postoperative diagnosis and management of this condition.展开更多
AIM: To evaluate the clinical usefulness of Daikenchuto (DKT) in hepatecomized patients. METHODS: Twenty patients were enrolled with informed consent. Two patients were excluded because of cancelled operations. The re...AIM: To evaluate the clinical usefulness of Daikenchuto (DKT) in hepatecomized patients. METHODS: Twenty patients were enrolled with informed consent. Two patients were excluded because of cancelled operations. The remaining 18 patients were randomly chosen for treatment with DKT alone or combination therapy of DKT and lactulose (n = 9, each group). Data were prospectively collected. Primary end points were Visual Analogue Scale (VAS) score for abdominal bloating, total Gastrointestinal Symptoms Rating Scale (GSRS) score for abdominal symptoms, and GSRS score for abdominal bloating. RESULTS: The VAS score for abdominal bloating and total GSRS score for abdominal symptoms recovered to levels that were not significantly different to preoperative levels by 10 d postoperation. Combination therapy of DKT and lactulose was associated with a significantly poorer outcome in terms of VAS and GSRS scores for abdominal bloating, total GSRS score, and total daily calorie intake, when compared with DKT alone therapy. CONCLUSION: DKT is a potentially effective drug for postoperative management of hepatectomized patients, not only to ameliorate abdominal bloating, but also to promote nutritional support by increasing postoperative dietary intake.展开更多
In order to guarantee the clinical safety of cosmetic acupuncture,all kinds of potential risks are clarified and summarized.Three organizations for cosmetic acupuncture training have conducted the investigation on the...In order to guarantee the clinical safety of cosmetic acupuncture,all kinds of potential risks are clarified and summarized.Three organizations for cosmetic acupuncture training have conducted the investigation on the risk of cosmetic acupuncture respectively.The investigation contents have been collected to be a guideline.It focuses on 12 treatment items that may cause the risks in cosmetic acupuncture and 3 treatment items that is coincident with cosmetic medicine.The potential risks are summarized in clinical practice under the risk management of cosmetic acupuncture.展开更多
Location-based social network (LBSN) is at the forefront of emerging trends in social network services (SNS) since the users in LBSN are allowed to "check-in" the places (locations) when they visit them. The a...Location-based social network (LBSN) is at the forefront of emerging trends in social network services (SNS) since the users in LBSN are allowed to "check-in" the places (locations) when they visit them. The accurate geographi- cal and temporal information of these check-in actions are provided by the end-user GPS-enabled mobile devices, and recorded by the LBSN system. In this paper, we analyze and mine a big LBSN data, Gowalla, collected by us. First, we investigate the relationship between the spatio-temporal co- occurrences and social ties, and the results show that the co- occurrences are strongly correlative with the social ties. Sec- ond, we present a study of predicting two users whether or not they will meet (co-occur) at a place in a given future time, by exploring their check-in habits. In particular, we first intro- duce two new concepts, bag-of-location and bag-of-time-lag, to characterize user's check-in habits. Based on such bag rep- resentations, we define a similarity metric called habits sim- ilarity to measure the similarity between two users' check-in habits. Then we propose a machine !earning formula for pre- dicting co-occurrence based on the social ties and habits sim- ilarities. Finally, we conduct extensive experiments on our dataset, and the results demonstrate the effectiveness of the proposed method.展开更多
Uncertain data are common due to the increasing usage of sensors, radio frequency identification(RFID), GPS and similar devices for data collection. The causes of uncertainty include limitations of measurements, inclu...Uncertain data are common due to the increasing usage of sensors, radio frequency identification(RFID), GPS and similar devices for data collection. The causes of uncertainty include limitations of measurements, inclusion of noise, inconsistent supply voltage and delay or loss of data in transfer. In order to manage, query or mine such data, data uncertainty needs to be considered. Hence,this paper studies the problem of top-k distance-based outlier detection from uncertain data objects. In this work, an uncertain object is modelled by a probability density function of a Gaussian distribution. The naive approach of distance-based outlier detection makes use of nested loop. This approach is very costly due to the expensive distance function between two uncertain objects. Therefore,a populated-cells list(PC-list) approach of outlier detection is proposed. Using the PC-list, the proposed top-k outlier detection algorithm needs to consider only a fraction of dataset objects and hence quickly identifies candidate objects for top-k outliers. Two approximate top-k outlier detection algorithms are presented to further increase the efficiency of the top-k outlier detection algorithm.An extensive empirical study on synthetic and real datasets is also presented to prove the accuracy, efficiency and scalability of the proposed algorithms.展开更多
文摘Splenic hamartoma is a rare benign tumor,and although minimally invasive surgery may be suitable for this condition,there have only been 2 previous reports of laparoscopic surgery.Here we report the third case of splenic hamartoma managed by laparoscopic splenectomy.A 37-year-old male was incidentally diagnosed by abdominal ultrasonography with a hypoechoic mass measuring 2.5 cm × 2.4 cm in the spleen.Color Doppler sonography showed multiple flow signals within the mass and contrast-enhanced computed tomography revealed strong enhancement of the lesion.On T1-and T2-weighted magnetic resonance images,the splenic mass was demonstrated as isointense and hyperintense respectively.Although a malignant tumor could not be ruled out,a hand-assisted laparoscopic splenectomy was performed because the splenic mass was limited in size and had not invaded adjacent organs.The pathological diagnosis was splenic hamartoma.The postoperative course was uneventful and the patient was discharged by the seventh postoperative day.Although splenic hamartomas have some specific imaging features,more reports and analyses of these cases are required to increase the reliability of the diagnosis and management.Hand-assisted laparoscopic splenectomy may play a pivotal role in the postoperative diagnosis and management of this condition.
基金Supported by Grant from Tsumura and Co, the pharmaceutical company
文摘AIM: To evaluate the clinical usefulness of Daikenchuto (DKT) in hepatecomized patients. METHODS: Twenty patients were enrolled with informed consent. Two patients were excluded because of cancelled operations. The remaining 18 patients were randomly chosen for treatment with DKT alone or combination therapy of DKT and lactulose (n = 9, each group). Data were prospectively collected. Primary end points were Visual Analogue Scale (VAS) score for abdominal bloating, total Gastrointestinal Symptoms Rating Scale (GSRS) score for abdominal symptoms, and GSRS score for abdominal bloating. RESULTS: The VAS score for abdominal bloating and total GSRS score for abdominal symptoms recovered to levels that were not significantly different to preoperative levels by 10 d postoperation. Combination therapy of DKT and lactulose was associated with a significantly poorer outcome in terms of VAS and GSRS scores for abdominal bloating, total GSRS score, and total daily calorie intake, when compared with DKT alone therapy. CONCLUSION: DKT is a potentially effective drug for postoperative management of hepatectomized patients, not only to ameliorate abdominal bloating, but also to promote nutritional support by increasing postoperative dietary intake.
文摘In order to guarantee the clinical safety of cosmetic acupuncture,all kinds of potential risks are clarified and summarized.Three organizations for cosmetic acupuncture training have conducted the investigation on the risk of cosmetic acupuncture respectively.The investigation contents have been collected to be a guideline.It focuses on 12 treatment items that may cause the risks in cosmetic acupuncture and 3 treatment items that is coincident with cosmetic medicine.The potential risks are summarized in clinical practice under the risk management of cosmetic acupuncture.
文摘Location-based social network (LBSN) is at the forefront of emerging trends in social network services (SNS) since the users in LBSN are allowed to "check-in" the places (locations) when they visit them. The accurate geographi- cal and temporal information of these check-in actions are provided by the end-user GPS-enabled mobile devices, and recorded by the LBSN system. In this paper, we analyze and mine a big LBSN data, Gowalla, collected by us. First, we investigate the relationship between the spatio-temporal co- occurrences and social ties, and the results show that the co- occurrences are strongly correlative with the social ties. Sec- ond, we present a study of predicting two users whether or not they will meet (co-occur) at a place in a given future time, by exploring their check-in habits. In particular, we first intro- duce two new concepts, bag-of-location and bag-of-time-lag, to characterize user's check-in habits. Based on such bag rep- resentations, we define a similarity metric called habits sim- ilarity to measure the similarity between two users' check-in habits. Then we propose a machine !earning formula for pre- dicting co-occurrence based on the social ties and habits sim- ilarities. Finally, we conduct extensive experiments on our dataset, and the results demonstrate the effectiveness of the proposed method.
基金supported by Grant-in-Aid for Scientific Research(A)(#24240015A)
文摘Uncertain data are common due to the increasing usage of sensors, radio frequency identification(RFID), GPS and similar devices for data collection. The causes of uncertainty include limitations of measurements, inclusion of noise, inconsistent supply voltage and delay or loss of data in transfer. In order to manage, query or mine such data, data uncertainty needs to be considered. Hence,this paper studies the problem of top-k distance-based outlier detection from uncertain data objects. In this work, an uncertain object is modelled by a probability density function of a Gaussian distribution. The naive approach of distance-based outlier detection makes use of nested loop. This approach is very costly due to the expensive distance function between two uncertain objects. Therefore,a populated-cells list(PC-list) approach of outlier detection is proposed. Using the PC-list, the proposed top-k outlier detection algorithm needs to consider only a fraction of dataset objects and hence quickly identifies candidate objects for top-k outliers. Two approximate top-k outlier detection algorithms are presented to further increase the efficiency of the top-k outlier detection algorithm.An extensive empirical study on synthetic and real datasets is also presented to prove the accuracy, efficiency and scalability of the proposed algorithms.