Abstract Existing person re-identification (re-id) methods mostly exploit a large set of cross-camera identity labelled training data. This requires tedious data collection and annotation process, leading to poor scalability in practical re-id applications. On the other hand unsupervised do not need label information, but they usually suffer from much inferior insufficient model performance. To...

gamma camera is an important apparatus in nuclear medicine imaging. its detection part is consists of a scintillation detector with aheavy collimator. substitution of semiconductor detectors instead of scintillator in these cameras has been effectively studied. in this study, it is aimed to introduce a new design of p-n semiconductor detector array for nuclear medicine imaging. a p-n semiconduc...

As early as 1997 the first clinical publications showed the clinical benefits of using intra-operative Magnetic Resonance Imaging: “Intra-operative MRI can be expected to increase the degree and accuracy of resection” . Other studies have looked at post-operative MRI imaging and indicate that intra-operative MRI would have had an influence on the clinical outcome . All recent studies concur tha...

We introduce an automated and accurate system for registering pre-operative 3D MR and CT images with intraoperative 3D ultrasound images based on the vessels visible in both. The clinical goal is to guide the radio-frequency ablation (RFA) of liver lesions using percutaneous ultrasound even when the lesions are not directly visible using ultrasound. The lesions locations and desired RFA sites a...

BACKGROUND Patients undergoing orthognathic procedures can require blood transfusions. The objectives of this study were to evaluate the predictors of intra-operative blood loss in patients undergoing orthognathic procedures and the transfusion rates and practices of our institution. MATERIALS AND METHODS This retrospective study included 92 patients who underwent the following four types of ...

Augmented-Reality (AR) displays increase surgeon’s visual awareness of high-risk surgical targets (e.g., the location of a tumor) by accurately overlaying pre-operative radiological 3-D model onto the intra-operative laparoscopic video. Existing AR systems are not robust to sudden camera motion or prolonged occlusions, which can cause the loss of those anchor points tracked along the video sequ...

background: measurement of absolute or differential renal function using radiotracers plays an important role in the clinical management of various renal diseases. gamma camera quantitative methods in approximation of renal clearance may potentially be as accurate as plasma clearance methods. however some critical factors such as kidney depth and background counts are still troublesome in the u...