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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Radiologists should be mindful of extracolonic findings on CTC scans of cancer patients

Extracolonic findings observed on computed tomography colonography scans of cancer patients might identify undetected malignancies more often than previously thought, according to a new study in Clinical Imaging. 

colon colorectal cancer CTC

CT-based radiomics nomogram accurately predicts colorectal cancer prognosis

The study's findings could be used to help clinicians guide treatment decisions for CRC patients, experts suggested in Academic Radiology.

Imaging suggests blood clots are more common in COVID than pneumonia

In a recent study, venous thromboembolisms were detected in those with COVID via multiple imaging modalities at a rate of 16.3% compared to 9.2% in individuals with CAP.

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Antithrombotic therapy does not cause intracranial hemorrhage after falls, CT scans show

Experts reviewed images from more than 1,600 individuals to evaluate how such medications impacted brain bleeds, sharing their work Wednesday in AJR. 

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Research advocates for the return of positive oral contrast in abdominopelvic CT exams

Use of such agents has diminished in recent years, but there is still a great need for oral contrast among oncology patients, experts report in AJR. 

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Is MRI a suitable alternative to CT for testicular cancer surveillance? Research offers insight

CT surveillance is the standard of care for postoperatively monitoring testicular cancer, but when patients must undergo scans every few months after surgery, accumulative radiation exposure becomes a concern.

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These image findings on LDCT screenings offer insight beyond lung cancer

Research published recently in BMC Pulmonary Medicine examined associations between findings on low dose computed tomography screenings and other conditions, such as cardiovascular, respiratory and oncologic diseases.  

How second opinions from subspecialty radiologists alter cancer care

Such reports sometimes unearth widespread variability in in the quality of outside imaging exams, a significant amount of which result in treatment changes.

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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.