The purpose of this study was to develop protocols that optimize patient radiation dose and image quality for cone beam computed tomographic (CBCT) sialography for the major salivary glands.
Radiation absorbed dose measurements were repeated in triplicate using 25 sites in the head and neck of a Radiation ANalog DOsimetry system (RANDO) phantom, and effective doses were calculated across a range of peak kilovoltage (kVp) and milliamperage (mA) settings using an 8 cm (diameter) by 5 cm (height) field of view (FOV) for submandibular imaging and an 8 cm (diameter) by 8 cm (height) FOV for parotid imaging. Image signal difference-to-noise ratio (SDNR) was determined, and the figure-of-merit (FOM), a measure of image quality, was calculated.
For submandibular sialography, 85 kVp and 6 mA were chosen as the optimal exposure parameters, resulting in a mean effective dose of 82.47 µSv and a mean SDNR of 13.86, with a mean FOM of 2.33 µSv−1. For parotid sialography, 70 kVp and 6 mA were chosen, and these settings resulted in a mean effective dose of 39.99 µSv, a mean SDNR of 17.43, and a mean FOM of 7.60 µSv−1.
Low-dose 3-dimensional sialography with high image quality and minimal effective dose can be delivered using CBCT with localized, small FOVs.
To read this article in full you will need to make a payment
Purchase one-time access:Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online access
One-time access price info
- For academic or personal research use, select 'Academic and Personal'
- For corporate R&D use, select 'Corporate R&D Professionals'
Subscribe:Subscribe to Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Already a print subscriber? Claim online access
Already an online subscriber? Sign in
Register: Create an account
Institutional Access: Sign in to ScienceDirect
- Salivary gland diseases.in: Mallya SM Lam EWN White and Pharoah's Oral Radiology Principles and Interpretation. Elsevier, St. Louis2019: 622-635
- Review of the major and minor salivary glands, Part 1: anatomy, infectious, and inflammatory processes.J Clin Imaging Sci. 2018; 8: 47
- Salivary gland diseases.Dent Clin North Am. 2020; 64: 87-104
- Imaging the major salivary glands.Br J Oral Maxillofac Surg. 2011; 49: 261-269
- Other imaging modalities.in: Mallya SM Lam EWN White and Pharoah's Oral Radiology Principles and Interpretation. Elsevier, Maryland Heights, MO2019: 218-238
- A comparative study of the effective radiation doses from cone beam computed tomography and plain radiography for sialography.Dentomaxillofac Radiol. 2010; 39: 257-263
- Optimization of exposure parameters for cone beam computed tomography sialography.Dentomaxillofac Radiol. 2011; 40: 362-368
- A comparative study of the diagnostic capabilities of 2D plain radiograph and 3D cone beam CT sialography.Dentomaxillofac Radiol. 2013; 42: 1-8
- International Commission on Radiological Protection. The 2007 Recommendations of the ICRP Publication 103.Ann ICRP. 2007; 37: 1-332
- Review of Radiologic Physics.4th ed. Wolters Kluwer, Philadelphia2016
- Small field of view cone beam CT temporomandibular joint imaging dosimetry.Dentomaxillofac Radiol. 2013; 4220130082
- Radiation exposure during midfacial imaging using 4- and 16-slice computed tomography, cone beam computed tomography systems and conventional radiography.Dentomaxillofac Radiol. 2004; 33: 83-86
- Dosimetry of 3 CBCT devices for oral and maxillofacial radiology: CB Mercuray, NewTom 3G and i-CAT.Dentomaxillofac Radiol. 2006; 35: 219-226
- Current adult and pediatric CT doses.Pediatr Radiol. 2002; 32: 250-260
- The Essential Physics of Medical Imaging.3rd ed. Wolters Kluwer and Lippincott, Williams and Wilkins, Philadelphia, PA2012
- Optimization of exposure parameters and relationship between subjective and technical image quality in cone-beam computed tomography.Imag Sci Dent. 2019; 49: 139-151
- Contrast-to-noise ratio difference in small field of view cone beam computed tomography machines.J Oral Sci. 2012; 54: 227-232
- The salivary ducts of Wharton and Stenson: analysis of normal variant sialographic morphometry and a historical review.Ann Anat. 2013; 195: 238-242
- Diameters of the main excretory ducts of the adult human submandibular and parotid gland: a histologic study.Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1998; 85: 576-580
- Comparing cone beam computed tomography systems from an orthodontic perspective.Semin Orthod. 2011; 17: 34-38
- Using a flat-panel detector in high resolution cone beam CT for dental imaging.Dentomaxillofac Radiol. 2004; 33: 285-290
- Effect of exposure parameters of cone beam computed tomography on metal artifact reduction around the dental implants in various bone densities.BMC Med Imag. 2019; 19: 1-10
- Characterization of scattered X-ray photons in dental cone-beam computed tomography.PLoS One. 2016; 11: 1-14
Published online: December 30, 2022
Accepted: December 23, 2022
Received in revised form: December 19, 2022
Received: August 24, 2022
© 2022 Elsevier Inc. All rights reserved.