Comparison of sliced and whole lung sets for the LLNL and JAERI torso phantoms using GE detectors.

Comparison of sliced lungs with whole lung sets for a Torso Phantom measured with Ge detectors using MCNP and autoradiography

Lung counting: a function to fit counting efficiency of a lung counting germanium detector array to muscle-equivalent-chest-wall-thickness and photon energy using a realistic torso phantom.

A function has been developed that will fit counting efficiency to chest wall thickness, adipose content of the chest wall, and photon energy. The adipose content of the chest wall is removed as a variable by use of the derived quantity: muscle equivalent chest wall thickness. The function has been tested on experimental data sets obtained from the LLNL and JAERI torso phantoms using a variety ...

Chest wall thickness measurements of the LLNL phantom for small area germanium detector counting.

The Lawrence Livermore National Laboratory (LLNL) phantom was developed to calibrate lung counting systems that are used to estimate plutonium and other low energy photon emitting radionuclides deposited in the lung. Originally, low energy photon counting systems consisted of sodium iodide or phoswich detectors, but they have been largely replaced by smaller germanium detector arrays. The avera...

Reducing radiation doses in female breast and lung during CT examinations of thorax: A new technique in two scanners

Background: Chest CT is a commonly used examination for the diagnosis of lung diseases, but a breast within the scanned field is nearly never the organ of interest.Objective: The purpose of this study is to compare the female breast and lung doses using split and standard protocols in chest CT scanning.Materials and Methods: The sliced chest and breast female phantoms were used. CT exams were p...

An easy method to create the better representative of patients with various body morphologies

Introduction: In recent years, there has been increasing demand for personalized anatomy modeling for medical applications, because the influence of phantoms on the quality of treatments and precision dosimetry has been specified. Phantoms have many applications on medical such as treatment planning, diagnostic imaging, clinical radiological exposure simulation, and biomechanic...