Medical Physics: Page 12

AAPM: Honey, I shrunk the x-ray tubes
By AuntMinnie.com staff writers
Researchers from the University of North Carolina have developed miniaturized x-ray tube technology that could be more accurate than existing x-ray tubes, according to research presented at the American Association of Physicists in Medicine (AAPM) annual meeting.
July 28, 2009
Hybrid linac-MRI prototype may offer more precise treatment
By Cynthia E. Keen
Canadian scientists are presenting research on a new technology that places an MRI scanner onboard a medical linear accelerator at this week's American Association of Physicists in Medicine meeting in Anaheim, CA.
July 27, 2009
2009 07 27 13 11 08 118 M Rwith Linac 394 Top
Varian to highlight new products at AAPM
By AuntMinnie.com staff writers
Radiation therapy firm Varian Medical Systems plans to debut new and upgraded products for radiotherapy and radiosurgery at the upcoming American Association of Physicists in Medicine (AAPM) meeting.
July 23, 2009
Siemens to debut rad therapy package at AAPM
By AuntMinnie.com staff writers
Siemens Healthcare plans to debut a new real-time adaptive radiation therapy package at next week's American Association of Physicists in Medicine (AAPM) annual meeting.
July 23, 2009
Del signs Shin
By AuntMinnie.com staff writers
Del Global Technologies said it has retained digital imaging physicist Bryan Shin, Ph.D., as a dedicated consultant.
February 22, 2009
VIPER: Effective training for medical imaging
By Tracy Kirkbride, Ph.D.
To address a training shortfall for medical imaging students at Christchurch Polytechnic Institute of Technology in New Zealand, a team has initiated the VIPER project -- an intelligent tutoring system that allows students to test their knowledge against an online tool, giving them detailed feedback as they attempt to solve problems.
January 15, 2009
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Lawsuit hits Canadian cancer center for radiation therapy errors
By Cynthia E. Keen
A Canadian cancer center has been hit with a class action lawsuit claiming that hundreds of patients received improper levels of radiation during radiation therapy treatments over a three-year period.
December 29, 2008
AAPM approves Image Gently work group agenda
By AuntMinnie.com staff writers
The Image Gently Pediatric CT Physics Work Group has received formal consensus approval from the American Association of Physicists in Medicine (AAPM) to proceed with its work to establish consistency among CT scanner equipment measuring pediatric radiation dose.
December 22, 2008
VMAT provides same treatment as IMRT in half the time
By Kathlyn Stone
A study using volumetric modulated arc therapy (VMAT) for prostate cancer affirms the feasibility of the novel technique. Researchers from Memorial Sloan-Kettering Cancer Center compared VMAT with standard intensity-modulated radiation therapy (IMRT) using retrospective data from five patients who were prescribed a dose of 86.4 Gy.
October 30, 2008
2008 10 30 15 19 27 101 Radonc Vmat Thumb
MRI magnet explosions warrant improved venting and inspections
By Kathlyn Stone
At least five MRI magnets have exploded in U.S. healthcare facilities over the last 10 years, but the incidents have gone mostly unreported, according to Wlad Sobol, Ph.D., a medical physicist and professor of radiology at the University of Alabama at Birmingham (UAB) Health System.
September 29, 2008
Surrogate organs stand in for lung tumors during fluoroscopic tracking
By Kathlyn Stone
Working from the premise that other more visible anatomic features move in concert with lung tumors, researchers have developed a computer algorithm that uses these visible features as tumor stand-ins. In a feasibility study, the method localized the tumor position to an accuracy of within 1 mm and 2.5 mm.
August 7, 2008
2008 08 07 14 11 14 757 Flouro Tracking Image Thumb
SPECT/CT mammography system produces first patient images
By Kathlyn Stone
HOUSTON - Duke University researchers have begun the first patient studies of a hybrid SPECT/CT mammography system, and the unit has several advantages over conventional breast imaging technology, according to their findings.
July 29, 2008
2008 07 30 09 38 17 42 Madhav Duke Aapm2008 Hybrid Patient Thumb
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