conclusions surgical wound infections are less common by using reusable retrieval bag during laparoscopic appendectomy procedure. also, using reusable retrieval bag has less cost. patients and methods one hundred twenty laparoscopic appendectomies performed over one year, were included in this retrospective study. the patients were divided into 2 group; group a was the one in which la was done ...

BACKGROUND Since the introduction of laparoscopic surgery for gallbladder disease different types of retrieval devices have been used to extract the gallbladder from the peritoneal cavity. These devises infer additional costs and may lead to associated risks and complications. We aimed to evaluate the safety of gallbladder retrieval without the use of a retrieval device. METHODS A prospective...

Content-based image retrieval (CBIR) has been an active research topic in the last decade. In this paper we proposed an image retrieval method using global and local features. Firstly, for local features extraction, SURF algorithm produces a set of interest points for each image and a set of 64-dimensional descriptors for each interest points and then to use Bag of Visual Words model, a cluster...

Multiple-Instance (MI) learning is an important supervised learning technique which deals with collections of instances called bags. While existing research in MI learning mainly focused on classification, in this paper we propose a new approach for MI retrieval to enable effective similarity retrieval of bags of instances, where training data is presented in the form of similar and dissimilar ...

Content-based image retrieval (CBIR) has been an active research topic in the last decade. In this paper we proposed an image retrieval method using global and local features. Firstly, for local features extraction, SURF algorithm produces a set of interest points for each image and a set of 64-dimensional descriptors for each interest points and then to use Bag of Visual Words model, a cluster...

BACKGROUND The purpose of this study was to evaluate the feasibility and surgical outcome of a novel technique for laparoscopic removal of the fallopian tube using a homemade retrieval bag through a 10-mm transumbilical or 5-mm transabdominal port. MATERIALS AND METHODS A total of 40 women with ruptured ectopic tubal pregnancy were randomized into a 10-mm transumbilical group (n = 20) or a 5-...

This article gives a survey for bag-of-words (BoW) or bag-of-features model in image retrieval system. In recent years, large-scale image retrieval shows significant potential in both industry applications and research problems. As local descriptors like SIFT demonstrate great discriminative power in solving vision problems like object recognition, image classification and annotation, more and ...

INTRODUCTION Operating on an enlarged spleen via the laparoscopic approach presents several challenges. A homemade bag may facilitate retrieval of the enlarged spleen assisted by a laparoscope and save medical expense. AIM To assess the feasibility and safety of laparoscopic splenectomy for moderate or massive splenomegaly using our technique and a homemade retrieval bag. MATERIAL AND METHO...