An odontogenic keratocyst was detected and treated in the lower jaw. A 3D reconstruction from a CT scan was made before surgery and 15 months after. The healing process was monitored using stressstrain analyses of the mandible with a system of keratocysts, and by comparing them with the analogous data of stress-strain analyses of the patients mandible after the surgical extirpation of the cysts.

PURPOSE To develop a deliverable four-dimensional (4D) intensity-modulated radiation therapy (IMRT) planning method for dynamic multileaf collimator (MLC) tumor tracking delivery. METHODS AND MATERIALS The deliverable 4D IMRT planning method involves aligning MLC leaf motion parallel to the major axis of target motion and translating MLC leaf positions by the difference in the target centroid...

X-ray-computed tomography (CT) successfully underwent a transition from slice-by-slice imaging to volume imaging in the decade after 1990 due to the introduction of spiral scan modes. Later, the transition from single-slice to multislice scanning followed. With the advent of new detector technologies we are now looking forward to circular and spiral scanning using area detectors and the respect...

INTRODUCTION AND BACKGROUND Three dimensional (3D) printing has gained popularity in the medical field because of increased research in the field of haptic 3D modeling. We review the role of 3D printing with specific reference to liver directed applications. METHODS A literature search was performed using the scientific databases Medline and PubMed. We performed this in-line with the PRISMA [...

We present a new method for rigid registration of CT scans in Radon space. The inputs are the two 3D Radon transforms of the CT scans, one densely sampled and the other sparsely sampled. The output s the rigid transformation that best matches them. The algorithm starts by finding the best matching between each direction vector in the sparse transform and the corresponding direction vector in th...

PURPOSE To quantify volumetric and positional aliasing during non-gated fast- and slow-scan acquisition CT in the presence of 3D target motion. METHODS Single-slice fast, single-slice slow, and multi-slice fast scan helical CTs were acquired of dynamic spherical targets (1 and 3.15 cm in diameter), embedded in an anthropomorphic phantom. 3D target motions typical of clinically observed tumor ...

BACKGROUND To assess the success of the uptake of bone graft in cleft alveolus of the cleft lip and palate patients, quantitatively through computed tomography (CT) scan 6 months postoperative. To assess the successful eruption of permanent lateral incisor or canine in the bone grafted area. MATERIALS AND METHODS The children age group of 9-21 years with unilateral cleft lip and palate came t...

Abstract—Image reconstruction is an active research field, due to the increasing need for geometric 3D models in movie industry, games, virtual environments and in medical fields. 3D image reconstruction aims to arrive at the 3D model of an object, from its 2D images taken at different viewing angles. Medical images are multimodal, which includes MRI, CT scan image, PET and SPECT images. Of the...

Executive Summary NEH funds were awarded to MPM for the purpose of determining the feasibility of using holographic or holograph-like technology to exhibit CT-scan data of Egyptian mummies and to enhance the display of fragile museum objects. To determine this, we proposed to review the capacity of universities, research labs, or commercial companies to take CT-scan data (DICOM), segment it for...