Richard Stevenson

Clinical News
Intense x-rays expose Alzheimer's disease
A challenge in Alzheimer's disease treatment is that conventional tools such as MRI cannot resolve the micrometer-sized changes in the brain associated with the illness. However, these tiny features can now be identified with diffraction-enhanced imaging, with the potential to delivery early diagnosis, according to U.S. researchers.
August 5, 2009
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Tracking and quantitative analysis of diaphragmatic motion and projected lung area (PLA) at dynamic chest radiography (DCR) in a 55-year-old healthy man during deep breathing. (A) Posteroanterior radiograph with purple and green lines indicating the right and left lateral diaphragm apices, respectively. (B) Graph of diaphragmatic motion (in millimeters; y-axis) over time (i.e., frame number; x-axis). The software tracked the position of the diaphragm apex at DCR to obtain these amplitude-time plots of diaphragmatic motion (right lung, purple; left lung, green). The dark blue line corresponds to the frame representing the end of inspiration; the light blue line corresponds to the frame representing the end of expiration. (C) Posteroanterior radiograph shows the PLA (outline), which is the area surrounded by the medial edge of the ribs, the diaphragm, and the edge of the mediastinum. (D) Graph of PLA (in millimeters squared; y-axis) over time (i.e., frame number; x-axis). The software automatically tracked the boundaries of the lung fields and obtained the time-varying curves of the bilateral lung field areas. The blue line corresponds to the frame representing the end of inspiration.
Digital X-Ray
Dynamic chest radiography effective for diagnosing COPD
The technique can serve as an alternative to pulmonary function tests for diagnosing chronic obstructive pulmonary disease (COPD).
Gadolinium
MRI
Study reports low NSF rates following GBCA administration
2025 12 16 Radiology Ceus Liver Mri Thumbnail
Ultrasound
CEUS finds residual liver cancer after downstaging therapy
Research Money
Practice Management
Venture capital investment rising in radiology
Proton Therapy
Radiation Oncology/Therapy
Proton therapy effective for patients with oropharyngeal cancer
More in Home
Dynamic chest radiography effective for diagnosing COPD
By Will Morton
The technique can serve as an alternative to pulmonary function tests for diagnosing chronic obstructive pulmonary disease (COPD).
December 16, 2025
Tracking and quantitative analysis of diaphragmatic motion and projected lung area (PLA) at dynamic chest radiography (DCR) in a 55-year-old healthy man during deep breathing. (A) Posteroanterior radiograph with purple and green lines indicating the right and left lateral diaphragm apices, respectively. (B) Graph of diaphragmatic motion (in millimeters; y-axis) over time (i.e., frame number; x-axis). The software tracked the position of the diaphragm apex at DCR to obtain these amplitude-time plots of diaphragmatic motion (right lung, purple; left lung, green). The dark blue line corresponds to the frame representing the end of inspiration; the light blue line corresponds to the frame representing the end of expiration. (C) Posteroanterior radiograph shows the PLA (outline), which is the area surrounded by the medial edge of the ribs, the diaphragm, and the edge of the mediastinum. (D) Graph of PLA (in millimeters squared; y-axis) over time (i.e., frame number; x-axis). The software automatically tracked the boundaries of the lung fields and obtained the time-varying curves of the bilateral lung field areas. The blue line corresponds to the frame representing the end of inspiration.
Study reports low NSF rates following GBCA administration
By Kate Madden Yee
Nephrogenic systemic fibrosis (NSF) following gadolinium-based contrast agent (GBCA) use is rare, researchers have reported.
December 16, 2025
Gadolinium
CEUS finds residual liver cancer after downstaging therapy
By Amerigo Allegretto
Contrast-enhanced ultrasound (CEUS) is noninferior to contrast-enhanced MRI for detecting liver cancer after downstaging therapy.
December 16, 2025
2025 12 16 Radiology Ceus Liver Mri Thumbnail
Venture capital investment rising in radiology
By Amerigo Allegretto
Venture capital investment continues to rise in radiology, with over $11 billion being invested in imaging companies.
December 15, 2025
Research Money
Proton therapy effective for patients with oropharyngeal cancer
By Will Morton
The treatment targets tumors with charged particles rather than the high-energy x-rays of photon therapy.
December 15, 2025
Proton Therapy
SBI: WISDOM trial is 'contaminated and underpowered'
By Kate Madden Yee
The trial's conclusions are "unsupported," the Society of Breast Imaging (SBI) said, "due to significant methodological flaws."
December 15, 2025
Breast Screening Mammo
POCUS training leads to successful nerve block placement
By Amerigo Allegretto
Training can help novice point-of-care ultrasound users with guiding nerve blocks in patients with hip fractures.
December 15, 2025
Hip Fracture X Ray
What causes lung cancers to be missed on screening?
By Kate Madden Yee
Incomplete smoking history documentation appears to be one of the reasons.
December 12, 2025
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Early PET/CT feasible in women with suspected breast cancer
By Will Morton
Early imaging is not only more patient-friendly but also has the potential to simplify clinical workflows.
December 12, 2025
2025 12 12 Fapi Breast Cancer Thumbnail
Study highlights risk-based breast cancer screening; ACR responds
By Amerigo Allegretto
A study showing the potential benefits of risk-based breast cancer screening has drawn criticism from the ACR.
December 12, 2025
Doctor Patient Consult Tablet
Is AI ready for autonomous reads of chest x-rays?
By Liz Carey
A debate at RSNA 2025 reviewed the current use of autonomous AI for chest radiographs and assessed future opportunities.
December 11, 2025
At RSNA 2025, thoracic radiologists debated using autonomous AI for chest radiograph interpretation. They also fielded many audience questions and comments as well.
Patients support AI in radiology, but not as a standalone reader
By Will Morton
A majority of survey respondents would not agree to AI as a sole reader.
December 11, 2025
Ai Face
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