Helical computed tomography application in rabbit liver anatomy: comparison with frozen cross-sectional cuts

Agreement between Sagittal Plane Cross Sectional Anatomy, Sonoanatomy and Computed Tomography of Rabbit Prostate and Bulbourethral Glands

The purpose of the study was to present some anatomy imaging characteristics of prostate gland and bulbourethral glands of domestic rabbits and to evaluate the consistency of information for depicting the normal morphological topography of studied organs. Ten clinically healthy, sexually mature male New Zealand White rabbits at the age of 8 months, weighing 2.8–3.2 kg were examined by ultrasono...

Comparison of simulated cone beam computed tomography to conventional helical computed tomography for imaging of rhinosinusitis.

OBJECTIVES/HYPOTHESIS Cone beam computed tomography (CBCT) has emerged as a low radiation dose alternative to traditional computed tomography (CT) to evaluate the paranasal sinuses. The purpose of our study was to determine how often clinically important findings would be missed if CBCT was used routinely for sinus imaging. STUDY DESIGN Retrospective review. METHODS We evaluated all maxillo...

Quantitative analysis of respiration-induced motion of each liver segment with helical computed tomography and 4-dimensional computed tomography

BACKGROUND To analyze the respiratory-induced motion of each liver segment using helical computed tomography (helical CT) and 4-dimensional computed tomography (4DCT), and to establish the individual segment expansion margin of internal target volume (ITV) to facilitate target delineation of tumors in different liver segments. METHODS Twenty patients who received radiotherapy with CT-simulati...

A reconstruction method for helical computed tomography

This paper presents a method for volumetric reconstruction from Helical Computerized Tomography (H-CT) data which are collected with a fan beam source. An interpretation of the HCT data in terms of the Axial Computerized Tomography (ACT) data is provided. This analysis indicates that the H-CT data for positive and negative detector angles can be combined to form periodically nonuniform hexagona...

Lung Cancer Screening by Helical Computed Tomography