Kathlyn Stone

Radiation Oncology/Therapy
VMAT provides same treatment as IMRT in half the time
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
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MRI
MRI magnet explosions warrant improved venting and inspections
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
Digital X-Ray
Large CR study reveals wide variation in adult and pediatric protocols
A retrospective study of more than 40,000 computed radiography exams obtained from six University of Maryland departments suggests wide variations in protocols among hospital departments and slightly higher-than-necessary radiation exposure to patients, particularly children.
September 2, 2008
Nuclear Medicine
PET dose-painting methods produce discordant results
As intensity-modulated radiation therapy becomes more sophisticated, oncologists are investigating new dose-painting methods to determine which areas of tumor target volume should receive additional radiation dose. But a new study indicates that two promising methods to guide dose painting actually produce sharply varied results.
August 26, 2008
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Image Processing
New method reduces scatter in portable x-ray systems
Researchers at Emory University's Winship Cancer Institute and GE Global Research are collaborating on a software-based method for reducing scatter in portable systems. Tested on thorax phantom images, the algorithm reduced the x-ray signal by 50% to 100% without loss of image quality.
August 21, 2008
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Radiation Oncology/Therapy
Options abound for radiation therapy QC
Quality control is a vital issue in radiation therapy. A panel of experts recently discussed various approaches for radiation therapy quality control, ranging from peer reviews and data sharing to regulatory approaches and standards.
August 18, 2008
Radiation Oncology/Therapy
Surrogate organs stand in for lung tumors during fluoroscopic tracking
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
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Nuclear Medicine
SPECT/CT mammography system produces first patient images
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
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Radiation Oncology/Therapy
AAPM speaker tackles topic of healthcare reform
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
Breast
Digital breast tomosynthesis boosts reader accuracy, cuts recall rate
Digital breast tomosynthesis (DBT) boosts radiologists' cancer detection rates compared to full-field digital mammography (FFDM) alone, according to a multicenter, multireader study that evaluted reader performance with DBT. For this study, a dozen radiologists at five clinics took part in the trial, which compared radiologists' cancer detection rates and screening recall rates using DBT.
December 27, 2007
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Top Stories
Chatgpt
Artificial Intelligence
LLMs decrease in accuracy over time on radiology exams
Large language models (LLMs) demonstrate high accuracy on radiology exams, yet decrease in accuracy over time.
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MRI
Functional MRI illuminates what motivates e-cigarette use
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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
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LLMs decrease in accuracy over time on radiology exams
By Will Morton
Large language models (LLMs) demonstrate high accuracy on radiology exams, yet decrease in accuracy over time.
November 21, 2024
Chatgpt
Functional MRI illuminates what motivates e-cigarette use
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
Heart Pulmonary Trunk
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
Ovarian Cancer Social
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.
November 19, 2024
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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
Brain Stroke
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.
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