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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Patients prefer spiral breast CT over digital mammography—and diagnostic results are comparable

Premenopausal women benefit most from spiral breast computed tomography, experts said this week.

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CMS says evidence is sufficient to expand Medicare coverage for low-dose CT lung cancer screening

The Centers for Medicare & Medicaid Services wants to lower the starting age from 55 down to 50 while also modifying required smoking pack-years. 

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Low-dose CT scans just as accurate as standard for diagnosing appendicitis

The findings should encourage physicians to utilize LDCT in emergency settings to avoid unnecessary radiation.

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Radiologists must be aware of key CT findings in patients with 'devastating' COVID complication

A CT scan can offer a prompt diagnosis and guide subsequent surgical intervention for patients with acute mesenteric ischemia, a rare but deadly disease reported in some COVID cases.

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Radiologists launching new study assessing ‘one stop shop’ cardiac myocardial CT perfusion imaging

Emory University researchers will compare the technique to nuclear stress testing in a small group of patients.

lung cancer pulmonary nodule chest

Providers ordering diagnostic rather than screening CT may push patients out of LCS programs

Additionally, those who undergo a diagnostic versus screening exam can suffer damaging effects, including higher radiation dosages and alternate follow-up recommendations.

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Widely available CT test opens new treatment door for patients with severe stroke

The imaging technique could identify thousands of patients each year who may benefit from thrombectomy more than 24 hours after suffering a clot.

chest pain lung pulmonary embolism

Imaging group says new guidelines for chest pain contain some ‘troubling recommendations’

The update is meant to help clinicians improve outcomes while reducing costs, but one advocate says certain imaging suggestions may cause unanticipated harm.

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Around the web

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.

Cardiovascular Business
FDA clears AI tool that flags signs of heart disease in chest CT scans

The newly cleared offering, AutoChamber, was designed with opportunistic screening in mind. It can evaluate many different kinds of CT images, including those originally gathered to screen patients for lung cancer. 

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