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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Simple, proven strategies to reduce extravasation of contrast media during CT scans

Though adverse events after subcutaneous extravasation of contrast media during CT scans are not common, serious complications can occur, experts report in Academic Radiology.

CT scan showing lung cancer nodules with measurements of each nodule to track growth or regression from treatment. Image courtesy of RSNA

ACR outlines changes in Medicare lung cancer screening coverage

The American College of Radiology recently released a detailed summary of the National Coverage Determination related to screening for lung cancer with low dose 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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Lawsuit targets hospital system’s ‘astonishingly high’ charges for CT imaging and other care

Vidant Health has allegedly hid prices from patients, allowing it to overcharge for computed tomography exams and other common procedures, attorneys charged.

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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.

colon colorectal cancer CTC

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.