SUMMARY The planning of road, railway, and subway tracks in urban environments is a manifold task because of complex legal, environmental, economic, and structural problems. However, skills and knowledge of the participants differ substantially and computer support for complex planning still is at its beginning. Especially computer-aided collaborative planning for 3D city and building models is...

A 7-month-old white female with Pentalogy of Cantrell was imaged using 64 slice multidetector computed tomography (MDCT) with 3D mapping to better determine the extent of cardiac, thoracic, and abdominal malformations. Complimentary to ultrasound, the use of 3D 64 slice MDCT can facilitate effective diagnosis and treatment planning in cases of Pentalogy of Cantrell.

PURPOSE Standard treatment plan libraries are often used to ensure a quick turn-around time for vaginal cylinder treatments. Recently there is increasing interest in transitioning from conventional 2D radiograph based brachytherapy to 3D image based brachytherapy, which has resulted in a substantial increase in treatment planning time and decrease in patient through-put. We describe a novel tec...

background: 3dcrt (three-dimensional conformal radiotherapy) and imrt (intensity-modulated radiotherapy) has provided us with tools to delineate the radiation dose distribution of tumor targets. however, the precision of radiation can be compromised by respiratory motion, which usually limits the geometric and dosimetric accuracy of radiotherapy. the purpose of this study is to evaluate the imp...

Object definition is an increasingly important area of medical image research. Accurate and fairly rapid object definition is essential for measuring the size and, perhaps more importantly, the change in size of anatomical objects such as kidneys and tumors. Rapid and fairly accurate object definition is essential for 3D real-time visualization including both surgery planning and Radiation onco...

In regional hyperthermia extensive numerical simulations are required for optimizing individual cancer therapy treatments. To take full advantage of such simulations a therapy planning system is needed. In this paper we discuss a new hyperthermia planning system, focussing on its visualization and 3D-interaction functionality. Our software, called HyperPlan, assists the whole treatment planning...

BACKGROUND The dose distribution to the rectum, delineated as solid organ, rectal wall and rectal surface, in 3D conformal (3D-CRT) and intensity-modulated radiotherapy treatment (IMRT) planning for localized prostate cancer was evaluated. MATERIALS AND METHODS In a retrospective planning study 3-field, 4-field and IMRT treatment plans were analyzed for ten patients with localized prostate ca...

Background: 3DCRT (three-dimensional conformal radiotherapy) and IMRT (intensity-modulated radiotherapy) has provided us with tools to delineate the radiation dose distribution of tumor targets. However, the precision of radiation can be compromised by respiratory motion, which usually limits the geometric and dosimetric accuracy of radiotherapy. The purpose of this study is to evaluate the imp...