腹腔镜胆总管探查术（laparoscopic common bile duct exploration，LCBDE）的开展使创伤更小，而手术效果却与开腹手术相同，如今在中大型综合性医院开展已较普遍。本次研究探讨在基层缺乏胆道镜的条件下开展此术式的可行性及如何在安...腹腔镜胆总管探查术（laparoscopic common bile duct exploration，LCBDE）的开展使创伤更小，而手术效果却与开腹手术相同，如今在中大型综合性医院开展已较普遍。本次研究探讨在基层缺乏胆道镜的条件下开展此术式的可行性及如何在安全、彻底清除结石的要求下简化探查取石过程。现报道如下。展开更多
Mechanical lithotripsy （ML） is usually considered as a standard treatment option for large bile duct stones. However, it is impossible to retrieve oversized stones because the conventional lithotripsy basket may not...Mechanical lithotripsy （ML） is usually considered as a standard treatment option for large bile duct stones. However, it is impossible to retrieve oversized stones because the conventional lithotripsy basket may not be able to grasp the stone. However, there is no es- tablished endoscopic extraction method for such gi- ant stone removal. We describe a case of successful extraction of a 4-cm large stone using a gastric bezoar basket. A 78-year-old woman had suffered from upper abdominal pain for 20 d. Contrast-enhanced computed tomogram revealed a 4-cm single stone in the distal common bile duct （CBD）. Endoscopic stone retraction was decided upon and endoscopic papillary balloon dilation was performed using a large balloon. An at- tempt to capture the stone using a standard lithotripsy basket failed due to the large stone size. Subsequently, we used a gastric bezoar basket to successfully capturethe stone. The stone was fragmented into small pieces and extracted. The stone was completely removed after two sessions of endoscopic retrograde cholangio- pancreatography; each of which took 30 rain. No com- plications occurred during or after the procedure. The patient was fully recovered and discharged on day 11 of hospitalization. ML using a gastric bezoar basket is a safe and effective retrieval method in select cases, and is considered as an alternative nonoperative option for the management of difficult CBD stones.展开更多
Experimental results show that, all the sample of seasonal-temperature combinations, the effective component content is highest in November to collect leaves in the 25%; drying, and the strongest antioxidant activity....Experimental results show that, all the sample of seasonal-temperature combinations, the effective component content is highest in November to collect leaves in the 25%; drying, and the strongest antioxidant activity. The results of this study will provide theoretical basis for the preparation process of pomegranate leaf tea. Results of the correlation between antioxidant activity and the effective components show that the antioxidant activity of pomegranate leaves is closely related to polyphenol content, in particular had significant correlation with the content of tannin polyphenols, flavonoids, and ellagic acid content had no significant correlation.展开更多
The distribution characteristics of the impact craters can provide a large amount of information on impact history and the lunar evolution process. In this research, based on the digital elevation model （DEM） data o...The distribution characteristics of the impact craters can provide a large amount of information on impact history and the lunar evolution process. In this research, based on the digital elevation model （DEM） data originating from Change＇E-1 CCD stereo camera, three automatic extraction methods for the impact craters are implemented in two research areas： direct extraction from flooded DEM data （the Flooded method）, object-oriented extraction from DEM data by using ENVI ZOOM function （the Object-Oriented method） and novel object-oriented extraction from flooded DEM data （the Flooded Object-Oriented method）. Accuracy assessment, extracted degree computation, cumulative frequency analysis, shape and age analysis of the extracted craters combined display the following results. （1） The Flooded Object-Oriented method yields better accuracy than the other two methods in the two research areas; the extraction result of the Flooded method offers the similar accuracy to that of the Object-Oriented method. （2） The cumulative frequency curves for the extracted craters and the confirmed craters share a simi- lar change trajectory. （3） The number of the impact craters extracted by the three methods in the Imbrian period is the largest and is of various types; as to their age earlier than lmbrain, it is difficult to extract because they could have been destroyed.展开更多
文摘腹腔镜胆总管探查术（laparoscopic common bile duct exploration，LCBDE）的开展使创伤更小，而手术效果却与开腹手术相同，如今在中大型综合性医院开展已较普遍。本次研究探讨在基层缺乏胆道镜的条件下开展此术式的可行性及如何在安全、彻底清除结石的要求下简化探查取石过程。现报道如下。
基金Supported by Grant from Inha University Research
文摘Mechanical lithotripsy （ML） is usually considered as a standard treatment option for large bile duct stones. However, it is impossible to retrieve oversized stones because the conventional lithotripsy basket may not be able to grasp the stone. However, there is no es- tablished endoscopic extraction method for such gi- ant stone removal. We describe a case of successful extraction of a 4-cm large stone using a gastric bezoar basket. A 78-year-old woman had suffered from upper abdominal pain for 20 d. Contrast-enhanced computed tomogram revealed a 4-cm single stone in the distal common bile duct （CBD）. Endoscopic stone retraction was decided upon and endoscopic papillary balloon dilation was performed using a large balloon. An at- tempt to capture the stone using a standard lithotripsy basket failed due to the large stone size. Subsequently, we used a gastric bezoar basket to successfully capturethe stone. The stone was fragmented into small pieces and extracted. The stone was completely removed after two sessions of endoscopic retrograde cholangio- pancreatography; each of which took 30 rain. No com- plications occurred during or after the procedure. The patient was fully recovered and discharged on day 11 of hospitalization. ML using a gastric bezoar basket is a safe and effective retrieval method in select cases, and is considered as an alternative nonoperative option for the management of difficult CBD stones.
文摘Experimental results show that, all the sample of seasonal-temperature combinations, the effective component content is highest in November to collect leaves in the 25%; drying, and the strongest antioxidant activity. The results of this study will provide theoretical basis for the preparation process of pomegranate leaf tea. Results of the correlation between antioxidant activity and the effective components show that the antioxidant activity of pomegranate leaves is closely related to polyphenol content, in particular had significant correlation with the content of tannin polyphenols, flavonoids, and ellagic acid content had no significant correlation.
基金supported by the National Natural Science Foundation of China (Grant Nos. 40871177 and 41171332)the Knowledge Innovation Project of the Institute of Geographic and Natural Resources Research, the Chinese Academy of Sci-ences (Grant No. 201001005)
文摘The distribution characteristics of the impact craters can provide a large amount of information on impact history and the lunar evolution process. In this research, based on the digital elevation model （DEM） data originating from Change＇E-1 CCD stereo camera, three automatic extraction methods for the impact craters are implemented in two research areas： direct extraction from flooded DEM data （the Flooded method）, object-oriented extraction from DEM data by using ENVI ZOOM function （the Object-Oriented method） and novel object-oriented extraction from flooded DEM data （the Flooded Object-Oriented method）. Accuracy assessment, extracted degree computation, cumulative frequency analysis, shape and age analysis of the extracted craters combined display the following results. （1） The Flooded Object-Oriented method yields better accuracy than the other two methods in the two research areas; the extraction result of the Flooded method offers the similar accuracy to that of the Object-Oriented method. （2） The cumulative frequency curves for the extracted craters and the confirmed craters share a simi- lar change trajectory. （3） The number of the impact craters extracted by the three methods in the Imbrian period is the largest and is of various types; as to their age earlier than lmbrain, it is difficult to extract because they could have been destroyed.
