Medical Physics: Page 13

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
AAPM speaker tackles topic of healthcare reform
By Kathlyn Stone
HOUSTON - Physics-based technology has had an undeniably positive effect on medical diagnosis and treatment, but that same technology is overused and its expense is contributing to America's exorbitant healthcare costs, according to the opening address at the American Association of Physicists in Medicine (AAPM) annual meeting.
July 28, 2008
TomoTherapy readies TQA
By AuntMinnie.com staff writers
Radiation therapy firm TomoTherapy plans to introduce its Tomo Quality Assurance (TQA) application at the annual American Association of Physicists in Medicine (AAPM) meeting in Houston.
July 24, 2008
AAPM offers report on CT radiation reduction
By AuntMinnie.com staff writers
The American Association of Physicists in Medicine (AAPM) has issued a CT radiation dose management report, which recommends standardized ways of reporting doses and educating users on the latest dose-reduction technology.
February 18, 2008
Experimental US tomography runs circles around dense breast tissue
By Kathlyn Stone
Using water as a conductor between a ring-shaped transducer and breast tissue, a Michigan-based group is experimenting with ultrasound tomography for breast cancer screening. Benefits of this technique include the ability to scan dense breasts and, of course, a lack of radiation, according to the researchers who presented their work at the 2007 American Association of Physicists in Medicine meeting in Minneapolis.
August 29, 2007
2007 08 30 08 47 43 706
Interest surges in use of imaging for tracking radiation therapy
By Kathlyn Stone
MINNEAPOLIS - How will the imaging community respond to the challenge of quantitative imaging for treatment response? That was the question that multiple speakers set out to answer in a symposium at last week's American Association of Physicists in Medicine (AAPM) meeting. MRI, PET, and SPECT are all being thoroughly scrutinized in order to meet the increasing demand for noninvasive imaging biomarkers that can not only customize treatment, but also track treatment response.
July 30, 2007
2007 07 30 14 46 43 706
Philips shows upgraded radiation planning suite
By AuntMinnie.com staff writers
Philips Medical Systems of Andover, MA, is showcasing two new radiation oncology treatment products this week at the American Association of Physicists in Medicine (AAPM) meeting in Minneapolis.
July 23, 2007
Nucletron to unveil afterloader
By AuntMinnie.com staff writers
Radiotherapy provider Nucletron is debuting its microSelectron Digital afterloader at this week's annual meeting of the American Association of Physicists in Medicine (AAPM) in Minneapolis.
July 22, 2007
NAS calls in new BatCam
By AuntMinnie.com staff writers
Radiation therapy developer North American Scientific (NAS) will be debuting its BatCam Multi-Probe image-guided radiation therapy (IGRT) offering at this week's annual meeting of the American Association of Physicists in Medicine (AAPM) in Minneapolis.
July 22, 2007
Varian launches 'smart' radiotherapy tool
By AuntMinnie.com staff writers
Radiation therapy firm Varian Medical Systems of Palo Alto, CA, will highlight a new radiotherapy planning tool at the upcoming 2007 American Association of Physicists in Medicine (AAPM) meeting in Minneapolis.
July 18, 2007
CT overranging an important but hidden radiation source
By Eric Barnes
With multidetector CT scanners, what you see in the protocol isn't exactly what you get. Differences in overranging, also known as z overscanning, can lead to significant variations in the radiation dose delivered by different multidetector CT scanners and reconstruction algorithms, according to a new study from Leiden University Medical Center in the Netherlands.
January 31, 2007
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