CT

DL algorithm estimates lung nodule cancer risk, reduces false positives
By Kate Madden Yee
The deep-learning (DL) tool reduced false-positive results by almost 40% and showed high cancer detection rates.
September 16, 2025
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CCTA reveals that CAD can occur in the absence of typical risk factors
By Kate Madden Yee
Patients without coronary artery disease (CAD) risk factors may exhibit a similar degree of coronary inflammation to those with them.
September 15, 2025
Heart Pulmonary Trunk
6 key ways to evaluate the heart on chest CT imaging in the ED
By Kate Madden Yee
Researchers have published two checklists for noncardiac radiologists to use when evaluating chest CT exams taken in the ED.
September 12, 2025
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General-purpose LLMs can be used to track true critical findings
By Liz Carey
Experts from Stanford and Mayo Clinic Arizona tested few-shot prompting effectiveness with GPT-4 and Mistral-7B.
September 10, 2025
Chatgpt Artificial Intelligence Ai Head n9f Ar0 G2 Ll
RT's MRI, CT exam prep booklets mitigate children's anxieties
By Kate Madden Yee
Giuseppe Scappatura penned the booklets to help children face the exams with "greater serenity and collaboration."
September 10, 2025
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Experts propose generalist radiology AI framework
By Liz Carey
A team of researchers outlined five key features of diagnostic generalist radiology AI (GRAI).
September 9, 2025
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Low-dose CT ties emphysema to mortality in previous smokers
By Amerigo Allegretto
Study findings highlight the clinical relevance of CT-diagnosed emphysema.
September 9, 2025
Representative axial images of mild, moderate, and severe emphysema at baseline low-dose CT (LDCT). Participants were categorized as having no emphysema or mild, moderate, or severe emphysema. When present, emphysema was mild if no distinct regions of reduced attenuation were visible on the CT scan, but vascular splaying indicates parenchymal expansion, or if only occasional discrete low-attenuation regions were observed. Moderate emphysema was defined by the presence of identifiable low-attenuation regions affecting less than half of the lung parenchyma, whereas severe emphysema was defined by the presence of identifiable low-attenuation regions that involved more than half of the lung parenchyma. A scoring system from 0 to 3 was applied, corresponding to none, mild, moderate, and severe emphysema, respectively. Yellow circle indicates the extent of emphysema. (A) A 67-year-old man with mild emphysema at baseline LDCT in 2002. Baseline LDCT scan shows vascular splaying, suggesting parenchymal expansion due to emphysema and occasional discrete low-attenuation regions. The participant ultimately died of cardiovascular disease 15.4 years (184.2 months) later. (B) A 69-year-old man with moderate emphysema at baseline LDCT in 2007. The participant died of cardiovascular disease 1.8 years (21.9 months) later. Identifiable low-attenuation regions affected less than half of the lung parenchyma. (C) An 85-year-old woman with severe emphysema at baseline LDCT in 2006. After 5.5 years (65.5 months) of follow-up, the participant died due to chronic obstructive pulmonary disease–related causes. Identifiable low-attenuation regions involved more than half of the lung parenchyma.
Siemens highlights early lung cancer diagnosis CT technology at WCLC
By AuntMinnie.com staff writers
The technology, highlighted at the World Conference on Lung Cancer (WCLC), was developed in collaboration with Intuitive.
September 8, 2025
Siemens
ISCT: CT is an ideal imaging modality for cardiometabolic screening
By Kate Madden Yee
Tracking biomarkers on CT could help clinicians better predict patient outcomes.
September 5, 2025
Ct Scanner Control Room2 Radiologist
U.S. FDA clears 4DMedical's ventilation-perfusion CT:VQ imaging system
By AuntMinnie.com staff writers
CT:VQ converts standard, noncontrast chest CTs into quantitative, lobar ventilation, and perfusion maps.
September 5, 2025
Ct Scanner 6563edb5e443e
ISCT: Radiologists can help reduce iodinated contrast media waste
By Amerigo Allegretto
Radiologists can take proactive measures in reducing iodinated contrast media waste, according to an ISCT presentation.
September 5, 2025
Wastewater Treatment
ISCT: Mayo Clinic expert outlines how best to allocate PCCT resources
By Liz Carey
A Mayo Clinic radiologist discusses overcoming photon-counting CT (PCCT) operational challenges.
September 5, 2025
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