A 50-year-old woman with a solitary left kidney presented with a 1-year history of worsening left flank pain. A computed tomography angiography of her abdomen revealed a 2.8 cm left renal artery aneurysm that occurred at a distal branching point proximal to the renal hilum (A). Physical model generation, using a three-dimensional (3D) Printrbot (Lincoln, Calif), desktop printer and polylactic a...

As the presentation and development of “Digital Maritime” and “E-Navigation”, Aids to Navigation (AtoN) is more and more important to marine navigation safety. In recent years, great advances have been obtained in AtoN applications. However, most domestic AtoN setting systems are based on 2D electronic chart which can not represent AtoN visual effects and its complex "interactive visual effects...

Background The benefit of computer-assisted planning in orthognathic surgery (OGS) has been extensively documented over the last decade. This study aimed to evaluate the accuracy of three-dimensional (3D) virtual planning in surgery-first OGS. Methods Fifteen patients with skeletal class III malocclusion who underwent bimaxillary OGS with surgery-first approach were included. A composite skul...

AIM The purpose of this study was to present and validate an innovative semi-automatic approach to quantify the accuracy of the surgical outcome in relation to 3D virtual orthognathic planning among patients who underwent bimaxillary surgery. MATERIAL AND METHOD For the validation of this new semi-automatic approach, CBCT scans of ten patients who underwent bimaxillary surgery were acquired p...

The use of 3D computer-aided design (CAD) models to support construction project planning has been increasing in the previous year. 3D CAD models reveal more planning ideas by visually showing the construction site environment in different stages of the construction process. Using 3D CAD models together with scheduling software to prepare construction plan can identify errors in process sequenc...

The purpose of this study was to evaluate which post-processing imaging protocol would be better to analyze the additional mental foramen (AMF) in preoperative planning with cone-beam computed tomography (CBCT) exams, and to test reproducibility of measurements, using open source software (OsiriX). The software was used to detect the cases of AMF from among 58 exams for dental implant planning ...

Technological advances in radiation beam planning and linear accelerator based radiation delivery have led to the development of three dimensional conformal radiation therapy (3D-CRT). The 3D-CRT clinical treatment in our hospital was started in September 1998 and till December 2002, 51 patients with M(0) stage prostate carcinoma were treated. Treatment method consisted of pelvis and leg immobi...

We present a probabilistic 3D object recognition approach using multiple interpretations generation in cluttered domestic environment. How to handle pose ambiguity and uncertainty is the main challenge in most recognition systems. In our approach, invariant 3D lines are employed to generate the pose hypotheses as multiple interpretations, especially ambiguity from partial occlusion and fragment...

INTRODUCTION Intensity modulated radiation therapy (IMRT) has been incorporated at several institutions for early stage laryngeal cancer (T1/T2N0M0), but its utility is controversial. METHODS In three representative patients, multiple plans were generated: 1) Conventional 2D planning, with the posterior border placed at either the anterior aspect ("tight" plan) or the mid-vertebral body ("loo...