Image Wisely, a joint initiative of ACR, RSNA, ASRT and AAPM, provides information to the medical community to promote radiation safety in medical imaging.

Case 9: Balancing Image Quality and Radiation Dose in Cardiac CT Angiography

CE and CME currently unavailable

Explains how cardiac CTA scan parameters affect radiation dose exposure and image quality and illustrates techniques to modify scan acquisition and image post-processing to improve this balance in cardiac CTA.

 

Authors: N. Meyersohn; B. Ghoshhajra; U. Hoffmann

Target Audience: Radiologists, radiologic technologists and medical physicists performing and interpreting cardiac CT angiography

This educational activity is free.

Learning Objectives
Upon completion of this case, the participant will be able to:

  1. Explain how cardiac CT angiography scan parameters affect radiation dose exposure and image quality
  2. Identify techniques to lower radiation dose in CT acquisitions
  3. Utilize image reconstruction and viewing techniques to reduce CT image noise resulting from radiation dose reduction

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