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| May 7, 2009 | |
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International Shielding Conference (RSMI); July 19-21, 2009, Ericeira, Portugal
AAPM Website UpdatesAwards & Honors Committee - Call for Nominations Awards & Honors Committee - Call for Competitive Applications for Travel Grants Gamma Knife Incident Reported to the NRC from an Agreement State |
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NCINational Cancer Institute to Fund More ResearchThe federal government’s stimulus package plus budget increases will give the National Cancer Institute enough money to double the number of research projects it pays for, the agency’s director said on Monday... [see full article] RegulatoryLicensing Guidance for the Intraocular Use of NeoVista, Inc.’s Epi-Rad90™ (Strontium-90) Ophthalmic SystemThe NeoVista Epi-Rad90 TM Epiretinal Ophthalmic System is an ophthalmic device used for intraocular treatment by means of high dose rate focal delivery of radiation (i.e., strontium-90) to target tissues. The design and operation is significantly different from that of strontium-90 (Sr-90) superficial eye applicators that are currently regulated under 10 CFR 35.400, “Use of sources for manual brachytherapy.”... [see full article] ResearchT1 Hyperintense Renal Lesions: Characterization with Diffusion-weighted MR Imaging versus Contrast-enhanced MR ImagingTo compare the performance of apparent diffusion coefficient (ADC) measurement obtained with diffusion-weighted (DW) magnetic resonance (MR) imaging in the characterization of non–fat-containing T1 hyperintense renal lesions with that of contrast material–enhanced MR imaging, with histopathologic analysis and follow-up imaging as the reference standards... [see full article] Potential Effect of Robust and Simple IMRT Approach for Left-Sided Breast Cancer on Cardiac Mortality-dimensional (3D) treatment planning has reduced the cardiac dose in postoperative radiotherapy for breast cancer; however, the overall cardiac toxicity is still an issue because of more aggressive adjuvant treatment. Toxicity models have suggested that a reduction of the heart volume treated to high doses might be particularly advantageous... [see full article] TechnologyProbabilistic Computer Model Developed from Clinical Data in National Mammography Database Format to Classify Mammographic FindingsTo determine whether a Bayesian network trained on a large database of patient demographic risk factors and radiologist-observed findings from consecutive clinical mammography examinations can exceed radiologist performance in the classification of mammographic findings as benign or malignant... [see full article] The parametric response map is an imaging biomarker for early cancer treatment outcomeHere we describe the parametric response map (PRM), a voxel-wise approach for image analysis and quantification of hemodynamic alterations during treatment for 44 patients with high-grade glioma. Relative cerebral blood volume (rCBV) and flow (rCBF) maps were acquired before treatment and after 1 and 3 weeks of therapy... [see full article] Pulmonary Nodules: Volume Repeatability at Multidetector CT Lung Cancer ScreeningTo assess in vivo volumetric repeatability of an automated software algorithm in pulmonary nodules detected during a lung cancer screening trial... [see full article] The limitation of PET imaging for biological adaptive-IMRT assessed in animal modelsDose painting based on PET images should be carefully considered and should factor in possible discrepancies between PET images and the underlying microscopic reality represented by autoradiography (AR) images. These discrepancies were detected in a study conducted by Dr. Nicolas Christian of the Center for Molecular Imaging and Experimental Radiotherapy at the Universite Catholique de Louvain, in Brussels, and colleagues. In the study, which used a specific template for tumor-bearing mouse imaging, researchers segmented AR and FDG-PET images using a threshold-based method, selected to obtain absolute equal volumes in PET and AR images. Matching indexes were then calculated between the various volumes. This process allowed the researchers to establish low matching values of 39 percent between the volumes delineated on the PET images and those delineated on AR... [see full article] LegislativeBudget Compromise To Include Two-Year SGR Fix, No OffsetThe House and Senate tentatively agreed to include in the budget a two-year fix for the physician sustainable growth rate (SGR) without providing an offset, a key lawmaker said. Conferees met April 27 to discuss the budget resolution agreement that Senate Budget Chair Kent Conrad (D-ND) said was close to being finalized if the Senate could agree on "a number of outstanding issues," including parts of pay-as-you-go (paygo) rules... [see full article] Senate Finance Committee Unveils Delivery System Reform OptionsSenate Finance Committee leaders Max Baucus (D-MT) and Charles Grassley (R-IA) late Tuesday unveiled a series of health reform policy options that aim to promote higher quality care by fostering better provider coordination and value-based purchasing throughout the provider community... [see full article] Clinical PracticeCT Colonography to Screen for Colorectal Cancer and Aortic Aneurysm in the Medicare Population: Cost-Effectiveness AnalysisCT colonography (CTC) is a safe and minimally invasive procedure that has shown comparable performance to optical colonoscopy for the detection of advanced neoplasia [1–4]. As a result, the American Cancer Society,in conjunction with the major gastroenterology and radiology societies, has recommended CTC for routine colorectal cancer (CRC) screening for adults ≥ 50 years old [5]... [see full article] GeneralRare F.D.A. Meeting to Discuss Complaints on Device ApprovalAn unusual internal meeting scheduled for Wednesday at the Food and Drug Administration may signal how agency officials intend to handle the many controversies swirling around its embattled device division... [see full article] |
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Symposium on the Promises and Perils of Proton Radiotherapy