Photon-counting CT iodine maps show promise in early thoracic imaging studies
A scoping review of ten early clinical studies finds that photon-counting detector CT generates iodine maps across six thoracic indications ...
Tag: Radiation Dose
Low Tube Voltage and High-Concentration Contrast Media Optimize One-Stop CT Angiography
A low tube voltage protocol combined with high-concentration contrast media reduces radiation dose during one-stop head-neck and coronary CT angiography ...
Arterial-phase CT spots bowel ischemia sooner in small-bowel obstruction, at a radiation cost
Adding an arterial phase to CT for small-bowel obstruction raises ischemia detection sensitivity from 65 to 75 percent while lowering ...
Deep-learning CT reconstruction sharpens calcium visibility in phantom tests, but dose evens the score
In a thorax phantom study, 68-keV monoenergetic CT gave the highest contrast-to-noise ratio for calcium-mimicking inserts but also the highest ...
Radiotherapy for oral cavity cancer: mucositis dominates while saliva and gum fluid stay largely stable
A prospective study of 52 patients with oral cavity cancer found mucositis in 82.1 percent during radiotherapy, while salivary flow ...
Dual-Energy CT Protocol Cuts Contrast Dose and Radiation in Inferior Vena Cava Scans
A tuned dual-energy CT protocol combining 60 keV virtual monoenergetic imaging with 60% ASIR-V matched conventional image quality for inferior ...
Ultra-Low-Dose Tin-Filtered CT Slashes Radiation in PET/CT Without Losing Accuracy
A phantom and clinical validation study found that tin-filtered ultra-low-dose CT protocols cut CT radiation exposure by more than 90% ...
Lower contrast doses in coronary CT keep most scans diagnostic, study finds
A retrospective before-and-after study found a 22.8% contrast volume reduction in coronary CT angiography left a minority of scans below ...
Photon-counting CT outperforms dual-energy scanners at detecting tiny iodine traces
A controlled phantom study found that photon-counting CT achieved significantly lower iodine detection and quantification limits than dual-source and split-filter ...
Phase-contrast breast CT wins over radiologists in blinded reader study
In a blinded reader study of five fresh tumourectomy specimens, radiologists rated fused grating-interferometry breast CT images significantly higher than ...
Photon-counting CT sharpens lung nodule images at lower radiation doses, review finds
A scoping review of five studies finds photon-counting detector CT improves pulmonary nodule image quality and reveals additional morphologic features ...
AI Reads Routine Chest CTs to Flag Osteoporosis in Early Study
A preliminary study of 98 patients found that AI-derived bone density from routine chest CT scans closely matched dedicated QCT ...
Gamma Rays at Just the Right Dose Make Strawberry Plants Thrive, Study Finds
New research shows a moderate 30 Gy dose of gamma radiation boosted strawberry growth and flowering, while higher doses sharply ...
How Body Shape Shapes Your Radiation Dose: Waist-to-Hip Ratio Emerges as Unexpected Factor in Heart CT Scans
A new study finds that higher waist-to-hip ratio is associated with lower radiation dose in coronary CT angiography, driven primarily ...
Weekly MRI Reveals Radiation’s Early Fingerprint on the Brain’s Memory Hub
Weekly diffusion MRI during six weeks of partial-brain radiation therapy for high-grade glioma reveals a progressive, dose-dependent increase in hippocampal ...
Monte Carlo Analysis of Pediatric Spine Radiography Doses
The field of pediatric radiology has always been at the forefront of medical imaging, aiming to strike a balance between ...
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