Author Interviews, CT Scanning, JAMA, Lung Cancer, UCSF / 23.09.2019
CT Radiation Doses for Lung Cancer Screening Vary Widely
MedicalResearch.com Interview with:
[caption id="attachment_51556" align="alignleft" width="150"]
Dr. Demb[/caption]
Joshua Demb, PhD, MPH
Postdoctoral Scholar, Moores Cancer Center
University of California, San Diego
Health Science Research Specialist
Veterans Affairs San Diego Healthcare System
MedicalResearch.com: What is the background for this study?
Response: Our study leveraged radiation dose data from 72 facilities performing CT scans around the United States to learn more about the radiation dose used for lung cancer screening scans, as well as possible institutional predictors that might be associated with higher dose. Currently, the American College of Radiology has recommendations for how these low-dose lung cancer screening scans should be performed. However, it is unclear how much adherence there currently is to these guidelines.
Our findings indicated that there is wide variation in the distribution of radiation doses for low-dose lung cancer screening scans both within- and between facilities in our sample—in some cases this variation led to doses higher than the ACR recommendations.
Dr. Demb[/caption]
Joshua Demb, PhD, MPH
Postdoctoral Scholar, Moores Cancer Center
University of California, San Diego
Health Science Research Specialist
Veterans Affairs San Diego Healthcare System
MedicalResearch.com: What is the background for this study?
Response: Our study leveraged radiation dose data from 72 facilities performing CT scans around the United States to learn more about the radiation dose used for lung cancer screening scans, as well as possible institutional predictors that might be associated with higher dose. Currently, the American College of Radiology has recommendations for how these low-dose lung cancer screening scans should be performed. However, it is unclear how much adherence there currently is to these guidelines.
Our findings indicated that there is wide variation in the distribution of radiation doses for low-dose lung cancer screening scans both within- and between facilities in our sample—in some cases this variation led to doses higher than the ACR recommendations.
Dr. Hongying (Daisy) Dai[/caption]
Hongying (Daisy) Dai, PhD
Associate Professor
Department of Biostatistics | College of Public Health
University of Nebraska Medical Center
Omaha
MedicalResearch.com: What is the background for this study?
Response: Previous studies have reported a surge in e-cigarette use among youth during the 2017 - 2018. For instance, the prevalence of current (past 30-day) e-cigarette use increased by 77.8% (from 11.7% to 20.8%) among high school students and by 48.5% (from 3.3% to 4.9%) among middle school students.
As a result, the Food and Drug Administration (FDA) warns that youth e-cigarette use is reaching an epidemic proportion in September 2018. Whether e-cigarette use prevalence also increased among young adults (aged 18-24 years), a population with high e-cigarette use rates and vulnerability to nicotine dependence, is unknown.




