High Resolution, High Sensitivity Detectors for Molecular Imaging of Small Animals and Tumor Detection

Details High Resolution, High Sensitivity Detectors for Molecular Imaging of Small Animals and Tumor Detection High Resolution, High Sensitivity Detectors for Molecular Imaging of Small Animals and Tumor Detection

Apr 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006apsp.conf..720m&link_type=abstract

ASTROPARTICLE, PARTICLE AND SPACE PHYSICS, DETECTORS AND MEDICAL PHYSICS APPLICATIONS . Proceedings of the 9th Conference . Held

Physics

Medical Physics

Scientific paper

Imaging techniques with radionuclides provide very sensitive measures of a wide range of specific processes underying disease in the body. Detection of very small tumors with high specificity is therefore possible but the tecnique requires both high spatial resolution and high sensitivity.
We present the first simulations, performed by means of GEANT4 code, of breast tumors, imaged by different configurations of a compact discrete gamma camera, in order to optimize the performances of dedicated detectors for these tasks. Simulated planar images from 6 to 10 mm diameter tumors, placed at 5 mm from the collimator, were generated for NaI scintillator pixel sizes of 1.0×1.0 and 1.2×1.2 mm2, hexagonal hole Pb collimators with hole size of 1.5 and 1.9 mm. The generated photons have been sampled by two modelled Hamamatsu H8500 and H9500 PMT. Tumor to background uptake ratio from 1:6 to 1:12 has been considered.
The preliminary results in terms of spatial resolution and SNR show a slightly better performance of the high efficiency collimator, larger crystal size and H9500 combination.

Affiliated with

Also associated with

No associations

Rating

High Resolution, High Sensitivity Detectors for Molecular Imaging of Small Animals and Tumor Detection does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with High Resolution, High Sensitivity Detectors for Molecular Imaging of Small Animals and Tumor Detection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High Resolution, High Sensitivity Detectors for Molecular Imaging of Small Animals and Tumor Detection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1159506