Table 2.

Estimated and published effective patient doses (calculated using the chest coefficient (0.014) from dose length product)

Imaging technique	Approximated effective patient dose
CCT for LAA thrombus detection	1–4.7 mSva
CCT angiography	1.5–4.7 mSv
CCT for tissue characterization	1.5–9 mSv
Coronary angiography	2–8 mSv
AF ablation	1.6–59.6 mSv
VT ablation	3.0–45.0 mSv

Approximated patient radiation exposure for different x-ray-based imaging modalities in cardiac imaging.^9–11

AF, atrial fibrillation; CCT, cardiac computed tomography; LAA, left atrial appendage; mSv, millisievert; VT, ventricular tachycardia.

^ahighly dependent on scan protocol and triggering.