CBS 2019
CBSMD教育中心
中 文

科学研究

Abstract

Recommended Article

From Focal Lipid Storage to Systemic Inflammation Impact of Intravascular Ultrasound-Guided Percutaneous Coronary Intervention on Long-Term Clinical Outcomes in Patients Undergoing Complex Procedures Prevalence and clinical implications of valvular calcification on coronary computed tomography angiography The Prevalence of Myocardial Bridging Associated with Coronary Endothelial Dysfunction in Patients with Chest Pain and Non-Obstructive Coronary Artery Disease Association of Abnormal Left Ventricular Functional Reserve With Outcome in Heart Failure With Preserved Ejection Fraction Association Between Functional Impairment and Medication Burden in Adults with Heart Failure Natriuretic Peptide-Guided Heart Failure Therapy After the GUIDE-IT Study A Fully Magnetically Levitated Circulatory Pump for Advanced Heart Failure
|<<... 106 107 108 109 110 111 112 ...>>|

JOURNAL：American College of Cardiology Article Link

心脏成像电离辐射专家共识

Troy M LaBounty, M.D., FACC

  1. 1.    Typical effective radiation doses are provided for coronary computed tomography angiography, calcium score, single-photon emission computed tomography (SPECT), PET, diagnostic fluoroscopy, and interventional fluoroscopy studies. Many of these have wide ranges of typical effective doses (e.g., SPECT can range from 2.3 to 23 mSv).
  2. 2.    Population exposure to medical radiation has grown rapidly and was reported as 3.2 mSv/year when last estimated in 2006. This exceeds the natural background radiation that averages 3.0 mSv/year in the United States.
  3. 3.   Physicians performing interventional cardiovascular procedures can be exposed to significant radiation, which can exceed 100 uSv for a single procedure. An active interventional cardiologist can be expected to receive as much as 10 mSv/year of radiation in addition to background radiation.
  4. 4.    Doses over 100 mSv are associated with increased cancer risk in adults, with smaller doses associated with risk in children. Some patients and some physicians may be exposed to lifetime exposures that exceed this threshold.
  5. 5.    Effective radiation dose is estimated by measuring the radiation dose to specific tissues and organs, and adjusting this using a weighting factor that incorporates the sensitivity of each tissue and organ to cancer risk.
  6. 6.    Radiation risks can include tissue reactions due to cell injury (e.g., skin injuries), cancer, and mutations to germ cells that may be transmitted to offspring.
  7. 7.    The most accepted model of cancer risk suggests a linear relationship between dose and cancer risk, with no dose threshold under which there is no risk.
  8. 8.   Increased cancer risk is associated with higher doses, exposure of radiation-sensitive organs, female gender, and younger age. The predicted lifetime risk of cancer from exposure to 100 mSv of radiation is estimated at 2% for males and 4% for females under 15 years of age, and this risk decreases with greater age.
  9. 9.    Recommended radiation limits for workers exposed to occupational radiation are 20 mSv/year averaged over 5 years.
  10. 10.    The ALARA concept is that radiation dose should always be “as low as reasonably achievable.
>CBS CBS 2019

> CBS 2019 REGISTRATION

> CBS 2019 PROGRAM

> CBS 2019 CALL FOR SCIENCE

> CBS 2019 SPOTLIGHTS

 CBSMD

> CBSMD WEBSITE REGISTRATION

> EDUCATION CENTER

> RECOMMANDED PAPER

> TOP 10 RESEARCH PAPER

> PRE-READING

CBS 2019 CBS 2019 FACULTY Education Resource CBSMD Scientific Library
Copyright ⓒ CBS MD Nanjing China. All rights reserved. 京ICP备16025898号-11
联系我们| Top