Computed Tomography

Computed tomography (CT) is a fast and accurate imaging modality often used in emergency settings and trauma imaging. CT scans, with or without (or both) iodinated contrast are frequently used to image the brain, chest, abdomen and pelvis, but also have post-imaging reconstructive capabilities for detailed orthopedic imaging. It is now a standard imaging modality in emergency rooms to quickly assess patients. CT uses a series of X-ray images shot as the gantry rotates around the patient. Computer technology assembles these into into a dataset volume than can be slices on any access, or advanced visualization software can extract specific parts of the anatomy for study. Find more content specific to cardiac CT.

Mirvat Alasnag, MD, FACP, FACC, FSCAI, FSCCT, director of catheterization laboratory and research, King Fahd Armed Forces Hospital, Jeddah-Saudi Arabia, director of TCT Middle East, and member of Society of Cardiovascular CT (SCCT) Education Committee, outlines why coronary CT angiography (CCTA) imaging will likely be a paradigm shift in cardiology, and where the gaps remain to gather more clinical evidence.

CCTA continues to transform cardiac imaging, interventional cardiology

Mirvat Alasnag, MD, spoke to Cardiovascular Business about CCTA's growing influence in cardiology. 

Sarah-Jane James, CT, MRI, molecular imaging senior market analyst for Signify Research, explains key trends in imaging systems she saw at the Radiological Society of North America (RSNA) 2025 meeting.

Key trends in medical imaging systems at RSNA 2025

Sarah-Jane James, imaging market analyst for Signify Research, discusses key trends in the specialty that she saw at the Radiological Society of North America's annual meeting. 

PHOTO GALLERY: Radiology technologies at RSNA 2025

See some of the latest medical imaging technologies from around the expo floor at the 2025 Radiological Society of North America (RSNA) meeting.

 

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Neuroimaging not necessary for all patients who present to ED with vertigo

The decision to utilize such scans is challenging for emergency providers, with the condition most often of benign origin, according to new research published in the journal of Emergency Radiology. 

 

 

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AI reduces readers' kidney lesion interpretation times by over 30%

The tool also can be used on contrasted abdominal scans completed for other clinical indications, helping providers to identify and address suspicious lesions before they worsen.  

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Majority of residents' after-hours CT report discrepancies not clinically significant

A new analysis published in Emergency Radiology examines how likely it is for these discrepancies to lead to changes in diagnosis and patient care. 

Dual-energy CT systems allow for significant reduction in contrast dose

DECT systems allow for a contrast dose reduction of up to 25% during computed tomography pulmonary angiography exams.

AI-powered FFR-CT software linked to considerable cost savings, accurate predictions

According to Heartflow, its AI offering saves health systems nearly $1,400 per patient thanks to reductions in unnecessary cardiovascular testing.