Tami Freeman

Radiation Oncology/Therapy
Experts discuss proton therapy's potential for breast cancer
Proton therapy is currently used to treat brain, spine, and prostate cancers, as well as many pediatric tumors. Earlier this month, experts from some of the leading U.S. cancer centers gathered to discuss the emerging role of proton therapy in breast cancer.
February 26, 2013
2013 02 26 14 58 24 810 Procure Gantry 250 20130226220725
MRI
Hybrid linac-MRI tracks motion during radiotherapy
Real-time tumor tracking could prove invaluable for radiotherapy of moving targets such as lung tumors. Using MRI for such tracking provides position verification without ionizing radiation. Researchers recently discussed the latest results of a prototype hybrid linac-MRI system being developed at the Cross Cancer Institute in Canada.
October 7, 2012
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Radiation Oncology/Therapy
Exploiting log files for optimal radiotherapy QA
Quality assurance (QA) of intensity-modulated radiation therapy (IMRT) is a vital component in the radiotherapy process, but current QA procedures are far from optimal. Log files produced by radiotherapy systems can be exploited to vastly improve IMRT quality assurance.
September 17, 2012
2009 01 15 16 03 49 510 Med Phys Web Logo 100
Radiation Oncology/Therapy
Imaging advances therapy assessment
Monitoring and understanding a patient's response to therapy plays a central role in optimizing cancer treatment. Advanced imaging technologies could enable monitoring of tumor response at an earlier stage in the treatment course, providing a means for personalized therapy adaptation.
September 2, 2012
2009 01 15 16 03 49 510 Med Phys Web Logo 100
Radiation Oncology/Therapy
New takes on image guidance for radiation therapy
Kilovoltage and megavoltage conebeam CT are predominantly used for real-time imaging during radiation therapy, with systems based on ultrasound or MRI now also being developed. But there are other imaging modalities that could be used, including those that offer functional and molecular information regarding the tumor being treated.
August 23, 2012
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Radiation Oncology/Therapy
Adding ultrasound boosts radiotherapy for prostate cancer
Combining pulsed nonthermal focused ultrasound with radiotherapy could increase the efficacy of prostate cancer treatment, according to a presentation at the American Association of Physicists in Medicine annual meeting held in Charlotte, NC, earlier this month.
August 16, 2012
2009 01 15 16 03 49 510 Med Phys Web Logo 100
Radiation Oncology/Therapy
MRI visualizes proton dose distribution
MRI visualizes the dose distribution with proton therapy procedures by imaging radiation-induced tissue changes, reducing the uncertainty of the range of the proton beam, according to a presentation at the recent European Society for Radiotherapy and Oncology annual meeting.
May 29, 2012
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Nuclear Medicine
Brain PET enhances radiation therapy planning
A brain PET scanner based on semiconductor detectors can provide more accurate tumor delineation than a conventional whole-body PET system, according to researchers from Japan, who found that the newly developed system had twice the spatial resolution of conventional PET systems.
March 14, 2012
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Radiation Oncology/Therapy
Couch attenuation undermines radiotherapy plan quality
Treatment couches used to support a patient during intensity-modulated radiotherapy and arc therapy can unknowingly lead to an unacceptable reduction in dose to target structures. Rail placement can also affect the dose delivered.
January 15, 2012
2012 01 13 14 40 35 696 Couch Attenuation Thumb
Radiation Oncology/Therapy
Ultrasound tackles radiation therapy guidance
Ultrasound imaging offers the potential of marker-free, soft-tissue visualization during radiation therapy delivery, providing real-time tracking of target organ location without delivering any extra radiation dose to healthy tissue.
October 2, 2011
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Vaping E Cigarette Man
MRI
Functional MRI illuminates e-cigarette motivation
Functional MRI shows that e-cigarette users perceive the product as equally rewarding as money -- a finding that highlights the addictive potential of vaping.
Radiologist Computer Screen X Ray
Womens Imaging
Student-led initiative working to close gender gap in radiology
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CT
CT-defined CAC predicts cardiovascular events in lung cancer patients
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Economics
Medicare finalizes 2025 Fee Schedule cut
Mammo Reading
Practice Management
Share of nonphysician practitioners' imaging interpretation doubles
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Functional MRI illuminates e-cigarette motivation
By Kate Madden Yee
Functional MRI shows that e-cigarette users perceive the product as equally rewarding as money -- a finding that highlights the addictive potential of vaping.
November 21, 2024
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Student-led initiative working to close gender gap in radiology
By Amerigo Allegretto
A student-led initiative called Women in Radiology Education (WIRED) is working to close the gender gap in radiology.
November 20, 2024
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CT-defined CAC predicts cardiovascular events in lung cancer patients
By Kate Madden Yee
CT-defined coronary artery calcification (CAC) scores can help predict the occurrence of conditions such as heart attack or stroke in lung cancer patients.
November 20, 2024
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Medicare finalizes 2025 Fee Schedule cut
By Sandy Coffta
In a new column, Sandy Coffta of Healthcare Administrative Partners assesses how the 2025 Medicare Physician Fee Schedule Final Rule will impact radiology.
November 20, 2024
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Share of nonphysician practitioners' imaging interpretation doubles
By Kate Madden Yee
Nonphysician practitioners' share of imaging interpretation in office-based medical practices has more than doubled over the past decade.
November 20, 2024
Mammo Reading
Nomogram model predicts malignancy risk in ovarian masses
By Amerigo Allegretto
A nomogram model based on O-RADS ultrasound findings and clinical and lab indicators can predict malignancy risk in adnexal cystic-solid masses.
November 19, 2024
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PET links chronic stress to aggressive endometrial cancer
By Will Morton
Brain activity related to chronic stress may be associated with the aggressiveness of tumors in women with endometrial cancer.
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Head CT offers insight into old strokes
By Kate Madden Yee
Incidental discovery of old strokes on head CT imaging offers clinicians an opportunity to put measures against future strokes into place.
November 19, 2024
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Climate change boosts emergency department use of x-ray, CT
By Kate Madden Yee
Climate change's effects -- particularly higher outdoor heat and air pollution -- increase imaging use in the emergency department, especially x-ray and CT.
November 19, 2024
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Radiologists prefer local AI advice over global
By Will Morton
Radiologists and other physicians tend to trust AI more when the algorithms provide local rather than global explanations of findings on chest x-rays.
November 19, 2024
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FAPI-PET/CT superior to FDG-PET/CT in assessing liver cancer
By Will Morton
A recent study suggests that PET/CT imaging with a FAPI radiotracer is superior to F-18 FDG-PET/CT for assessing patients with liver cancer.
November 18, 2024
Two cases of pathologically confirmed intrahepatic cholangiocarcinomas in 68-year-old male patients. In both cases (A-H, case 1; I-P, case 2), CT scans (B, F, case 1; J, N, case 2) revealed intrahepatic bile duct dilation and suspected nodular lesions. While F-18 FDG PET/CT (A, C, D, case 1; I, K, L, case 2) failed to demonstrate abnormal tracer uptake (SUVmax 3.5, TBR 1.3 in Case 1; SUVmax 2.6, TBR 1.2 in Case 2), F-18 FAPI-04 PET/CT (E, G, H, case 1; M, O, P, case 2 ) showed positive uptake in the nodular lesions (SUVmax 9.7, TBR 3.5 in Case 1; SUVmax 9.6, TBR 3.3 in Case 2). Image available for republishing under Creative Commons license (CC BY 4.0 DEED, Attribution 4.0 International) and courtesy of BMC Cancer.
Room color, monitor displays affect breast imaging quality
By Amerigo Allegretto
Breast radiologists may want to consider the physical surroundings of mammography rooms for optimal image quality.
November 18, 2024
The number of all visible structures was fewer at an ambient light of 500 lux compared to both 25 and 75 lux. In addition, structure visibility was better with a gray wall color at all ambient light levels. Paired comparison between monitors showed better structure visibility on the high specification monitor for all condition. Image is available for republishing under a Creative Commons agreement (CC BY-NC-ND 4.0).
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