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.

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Deep learning-based reconstruction reduces pediatric CT dose by 54%, maintains image quality

Researchers used three different reconstruction techniques to compare how lower dose CT scans would impact image quality for pediatric patients.

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Allergic reactions to iodinated CT contrast increase likelihood of sensitivity to GBCAs

Historically, sensitivity to iodinated contrast media was not a risk factor for adverse reactions to gadolinium-based contrast agents, experts explained this week in Radiology.

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Automated CT scoring system accurately predicts prognosis in stroke patients

The study used non-contrast CT and CT perfusion imaging to analyze agreement between an automated reader and human radiologists with differing experience levels.

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Short CT colonography reporting intervention improves radiologists' detection of cancer

Given the positive findings of the trial, most radiologists would likely support the move to require assessments and accreditation for CTC reporting, experts explained recently in Radiology.

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CT-based radiomics features can help diagnose COPD earlier than ever before

Using radiomic features from chest CT images could be more beneficial than standard pulmonary function tests at diagnosis and severity staging of COPD, doctors suggested in Academic Radiology.

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Rural outreach initiative produces significant increase in lung cancer screenings

Out of the patients who were eligible for LDCT, 88% followed through with their appointment, researchers reported in JACR.

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Radiomics-clinical model accurately predicts osteoporotic spinal fracture timeline on CT images

When MRI is not feasible, computed tomography of the spine could offer a quick solution for diagnosing acute versus chronic fractures.

Specific chest CT findings linked with increased mortality in COVID patients

Three abnormalities, including pleural effusion and nodular consolidation, were all independent predictors of 30-day in-hospital mortality.

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Around the web

Cardiovascular Business
Positron partners with Upbeat Cardiology Solutions to improve cardiac PET/CT access

Positron, a New York-based nuclear imaging company, will now provide Upbeat Cardiology Solutions with advanced PET/CT systems and services. 

Cardiovascular Business
Global shortage of nuclear imaging isotopes may be over

The nuclear imaging isotope shortage of molybdenum-99 may be over now that the sidelined reactor is restarting. ASNC's president says PET and new SPECT technologies helped cardiac imaging labs better weather the storm.

Cardiovascular Business
‘A huge win’: CMS significantly increases Medicare payments for cardiac CT

CMS has more than doubled the CCTA payment rate from $175 to $357.13. The move, expected to have a significant impact on the utilization of cardiac CT, received immediate praise from imaging specialists.