Dr
Mark B Williams
(Department of Radiology, Department of Biomedical Engineering, Department of Physics University of Virginia)
05/09/2009, 15:30
Background: Lymph node metastasis is a strong predictor of melanoma-associated mortality. However, the false negative rate for sentinel lymph node biopsy (SLNBx) has been reported as high as 24%. Intra-operative mobile gamma camera (MGC) imaging may improve the accuracy of SLNBx. Methods: From 4/08-9/08, 20 patients undergoing SLNBx for melanoma were imaged with MGC. Participants underwent...
Dr
David Brasse
(IPHC, Université de Strasbourg, CNRS/IN2P3)
05/09/2009, 16:00
The sentinel lymph node procedure is now widely used in the staging of breast cancer patients. The “classic” procedure uses preoperative lymphoscintigraphy combined with blue-dye injection and peroperative dedicated instrumentation. These devices have already been implemented by several research groups using different detector materials such as semiconductors and inorganic scintillating...
Marie Alix Duval
(Laboratoire Imagerie et Modélisation en Neurobiologie et Cancérologie, Centre National de la Recherche Scientifique, Universités Paris VII and Paris XI)
05/09/2009, 16:30
In addition to intra-operative probes, compact gamma cameras are very attractive to provide more efficient radio-labelled tumors localization. We have developed a high resolution intra-operative imager, POCI (Per-Operative Compact Imager), who has following imaging performances at 140 keV Tc99m gamma energy: a) spatial resolution of 2.3 mm FWHM and b) corresponding detection efficiency of 10.7...
