Anthropomorphic Phantoms

Anthropomorphic Phantoms

Description

Radiation equivalent and anatomically correct realistic test subjects.

Product Description

The Heart/Thorax Phantom is ideal for evaluation of detectability, extent and severity of myocardial infarcts in patients.This Phantom also provides valid assessment of  mammoscintigraphy techniques.The Striatal Phantom optimizes quantitative imaging in patients, using PET or SPECT.

Myocardial perfusion SPECT is a widely-used, non-invasive method for the diagnosis and management of patients with coronary disease. However, non-uniform photon attenuation, Compton scatter, limited and depth-dependent spatial resolution, as well as image noise, limit the ability of SPECT to obtain images that reliably represent the true tracer distribution. The non-uniform attenuation of the thorax is the most significant factor limiting the diagnostic efficacy of myocardial SPECT.

The currently used attenuation, scatter and resolution correction methods are suboptimal, since they do not provide improvement in the 25% false-negative findings in a group of about 100 patients with luminal diameter stenoses of at least 50%. Furthermore, the ability to detect multivessel disease was 70% without and 47% with corrections. This finding implies that myocardial SPECT can seriously underestimate the extent of disease in high risk patients. On the other hand, the false-positive findings in the group with a low probability of coronary disease were reduced from 14% without corrections to 3% with corrections.

Obviously, further improvements in both hardware and software for myocardial SPECT are necessary before this important diagnostic technique can realize its full potential. These improvements must be carefully evaluated on realistic, anthropomorphic phantoms to improve results in clinical practice.

Features

  • Receptor Quantification As A Function Of Uptake Ratio
  • Partial Volume Effects
  • Scatter And Attenuation-Correction Schemes
  • Threshold for Changes in Uptake
  • Comparison Of Different Acquisition Modes, e.g. 2-D Vs 3-D Pet
  • Design Of Different Reconstruction Strategies
  • Testing And Validation Of Image Registration Techniques
  • Design Of Imaging Protocol For Patients
5220-RS800T Heart/Thorax Phantom

The Head

The Head Phantom is based upon a standard head with a calvarial cut to insert or remove the brain shell easily.  The nasal cavity and maxillary sinuses are filled with foam with a mass density of 0.23 g/cc.

Item Number

5220-RS900T Striatal Phantom Head with Transparent Brain & Striatum

The brain shell has five compartments which can be filled separately: left and right nucleus caudate, left and right putamen, and the remainder of the brain.  This allows different nucleus caudate to putamen ratios as well as different striatal to background ratios to be obtained; this also permits differences between left and right striatal activity to be examined.

Item Number

5220-RS901T Transparent Brain Shell with Striatum

Livermore Organs

Item Numbers

Inert, Hole, Matrix Solid, Active Inert, Hollow Organ
N/A 5220-RS503A N/A Lungs
N/A 5220-RS506A 5220-RS506S Lymph Nodes(set of 3)
5220-RS507H 5220-RS508A
(Liver Only)
5220-RS519S
(Liver Only)
Liver & Liver Envelope
5220-RS510H 5220-RS511A N/A Abdominal Contents (Replaces Liver and Liver Envelope)

Fission-Product Organs

Item Numbers

Inert, Hole, Matrix Solid, Active Inert, Hollow Organs
5220-RS502H 5220-RS503A N/A Lungs
N/A 5220-RS506A 5220-RS506S Lymph Nodes(set of 3)
N/A 5220-RS543A 5220-RS543S Thyroid
5220-RS507H 5220-RS508A 5220-RS519S Liver
5220-RS530H 5220-RS531A 5220-RS532S Kidneys (pair)
5220-RS533H 5220-RS534A 5220-RS535S Stomach
5220-RS536H 5220-RS537A 5220-RS538S Pancreas
5220-RS539H 5220-RS540A 5220-RS541S Spleen
5220-RS544H N/A N/A Small Intestine
5220-RS546H N/A N/A Large Intestine

Pixy Body Phantoms

Item Numbers

0695-0001 Transparent Whole Body Phantom w/ Storage Case
0695-0002 Opaque Whole Body Phantom w/ Storage Case

Specifications