Technical Brief

Effective Dose Reduction in Lateral Lumbar Spine Diagnostic Radiography using X-Ray Tube Heel Effect

[+] Author and Article Information
A. Ben-Shlomo

Radiation Safety Division, Soreq NRC, Israel

G. Bartal

Dept of Medical Imaging, Meir MC, Israel

M. Mosseri

Cardiology Division, Meir MC, Israel

S. Shabat

Dept of Orthopedic Surgery, Spinal Care Unit, Meir MC, Israel

1Corresponding author.

ASME doi:10.1115/1.4036462 History: Received June 12, 2016; Revised April 11, 2017


PURPOSE: The study aimed to determine how lumbar spine x-ray examinations effective dose changes at different patient positioning considering the x-ray tube heel effect. METHODS: The study used exposure of patient phantoms and Monte Carlo simulation of the effective doses. Results and conclusions: Using heel effect phenomenon the head to anode positioning of the patient reduces the effective dose by 5.0% when compared with the head to cathode direction and the same exposure.

Copyright (c) 2017 by ASME
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