Table 2

Typical Effective Doses for Cardiac Procedures

ModalityProtocolTypical Effective Dose (mSv)
MDCTCoronary CT angiography: helical, no tube current modulation8–30
MDCTCoronary CT angiography: helical, tube current modulation6–20
MDCTCoronary CT angiography: prospectively triggered axial0.5–7
MDCTCoronary CT angiography: high-pitch helical<0.5–3
MDCTCT angiography, pre-TAVR: coronary (multiphase) and chest/abdomen/pelvis5–50
MDCTCalcium score1–5
MDCTAttenuation correction<0.5–2
EBCTCalcium score1
SPECT10 mCi 99mTc sestamibi rest/
30 mCi 99mTc sestamibi stress
SPECT15 mCi 99mTc sestamibi rest/
45 mCi 99mTc sestamibi stress
SPECT30 mCi 99mTc sestamibi stress/
30 mCi 99mTc sestamibi rest
SPECT10 mCi 99mTc sestamibi stress only2.7
SPECT30 mCi 99mTc sestamibi stress only8
SPECT10 mCi 99mTc tetrofosmin rest/
30 mCi 99mTc tetrofosmin stress
SPECT15 mCi 99mTc tetrofosmin rest/
45 mCi 99mTc tetrofosmin stress
SPECT30 mCi 99mTc tetrofosmin stress/
30 mCi 99mTc tetrofosmin rest
SPECT10 mCi 99mTc tetrofosmin stress only2.3
SPECT30 mCi 99mTc tetrofosmin stress only7
SPECT3.5 mCi 201Tl15
SPECTDual isotope: 3.5 mCi 201Tl rest/
30 mCi sestamibi stress
SPECTDual isotope: 3.5 mCi 201Tl rest/
30 mCi tetrofosmin stress
PET50 mCi 82Rb rest/50 mCi 82Rb stress4
PET15 mCi 13N ammonia rest/
15 mCi 13N ammonia stress
PET10 mCi 18F FDG7
Planar30 mCi 99mTc-labeled erythrocytes8
FluoroscopyDiagnostic invasive coronary angiography2–20
FluoroscopyPercutaneous coronary intervention5–57
FluoroscopyTAVR, transapical approach12–23
FluoroscopyTAVR, transfemoral approach33–100
FluoroscopyDiagnostic electrophysiologic study0.1–3.2
FluoroscopyRadiofrequency ablation of arrhythmia1–25
FluoroscopyPermanent pacemaker implantation0.2–8

CT = computed tomographic; EBCT = electron-beam computed tomography; FDG = fluorodeoxyglucose; MDCT = multidetector-row computed tomography; PET = positron emission tomography; SPECT = single-photon emission computed tomography; TAVR = transcatheter aortic valve replacement.