PMID: 9650194Jul 3, 1998Paper

Exposure and dose in panoramic radiology

Medical Physics
A Goldstein

Abstract

Panoramic radiology entrance skin exposure (ESE) was measured for a Siemens Orthopantomograph 10 E using a thimble chamber and TLDs. Thimble chamber measurements are shown to be inaccurate for the moving, narrow beam panoramic scan geometry due to partial volume and partial charged-particle equilibrium effects. For 75 KVp, 8 mA panoramic scans the TLD measured beam central ray ESE on the scan central plane (patient midsagittal plane) was an approximately constant 20 mR for the first 7.5 cm from the entrance slit. A theoretical model of central plane ESE for a fixed rotation center agrees very well with the TLD measurements and is consistent with all of the known ESE (and dose) properties near rotation centers. Head phantom skin dose measurements demonstrate the dependence of skin dose on exact equipment mode of use and patient anatomy. Central plane, beam central ray ESE is judged to be a convenient, universal measure of panoramic radiology radiation output.

References

Sep 1, 1979·The British Journal of Radiology·B F WallP D Bird
Feb 1, 1976·Oral Surgery, Oral Medicine, and Oral Pathology·S AntokuD R Beach
Jul 1, 1988·Oral Surgery, Oral Medicine, and Oral Pathology·T E UnderhillG Barnwell
May 1, 1987·The Journal of the American Dental Association·S Martinez-Cruz, L R Manson-Hing
Dec 1, 1982·Physics in Medicine and Biology·R M Harrison
Aug 1, 1994·Dento Maxillo Facial Radiology·N L FrederiksenT W Sokolowski
Jul 6, 1996·British Dental Journal·A H Friedlander, I K Friedlander
Feb 1, 1997·Brain Research. Molecular Brain Research·M WaltonM Dragunow
Jul 3, 1998·Medical Physics·A Goldstein

❮ Previous
Next ❯

Citations

Jul 29, 2010·Redox Report : Communications in Free Radical Research·David J BondaMark A Smith
Nov 1, 2013·Dento Maxillo Facial Radiology·D RottkeD Schulze
Apr 20, 2007·Medical Hypotheses·Biji T KurienR Hal Scofield
Mar 19, 2003·The British Journal of Radiology·P Isoardi, R Ropolo
Nov 23, 2001·The British Journal of Radiology·L GonzálezR Fernández
Mar 17, 2017·Journal of Applied Clinical Medical Physics·Muizz A WahidNancy L Ford
Jun 27, 2007·Journal of Applied Clinical Medical Physics·Robert Y ChuYongguang Liang

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Journal of Oral Pathology & Medicine : Official Publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology
S Mutlu, C Scully
© 2022 Meta ULC. All rights reserved