Written by Dentistry Today Monday, 23 December 2013 10:55
Hatfield, PA (December 19, 2013) New research on cone beam 3D imaging has found that there is a solution for dental professionals who are seeking a low-exposure alternative CBCT scanner. Dr. John Ludlow, a distinguished researcher in imaging technology and radiation dose, has recently published his newest study comparing doses from the newest i-CAT model of CBCT technology, the i-CAT FLX, with those from conventional 2D and medical CT imaging alternatives. His valuable article summarizing the study’s findings offers clinicians information to make prudent decisions about their imaging options for the best interests of their patients and their practices.1
The study, published in December in the American Journal of Orthodontics and Dentofacial Orthopedics assessed effective doses of radiation for adults and children resulting from various combinations of field of view size and field location in Imaging Sciences’ i-CAT FLX. The researchers used dosimeters in adult and child anthropomorphic phantoms, positioned the phantoms for imaging, exposed with the desired technical factors, read the absorbed dose using a specially designed reader, and used the readings in the calculation of effective dose. The tests showed that i-CAT FLX Quick Scan+ protocols resulted in significantly lower doses than standard protocols for the child (P = 0.0167) and adult (P = 0.0055) phantoms. The study showed, “the QuickScan+ protocol provided a substantial 87% reduction in dose compared with the standard exposure protocols in both child and adult phantoms. Thus, when QuickScan+ protocols can be used, they will provide a clinically meaningful reduction in dose.” While reductions in dose are accompanied by reductions in image quality, these low dose volumes are useful for specific tasks, Dr. Ludlow noted that the study indicated, “The Quick Scan+ image volume provides 3D information with minimal geometric distortion that is unavailable in any 2D image and at a comparable dose.”
Dr. Ludlow also said that this study is significant because “Studies such as this allow practitioners to compare the relative risk of different examinations, techniques, and equipment. Together with information on image quality and diagnostic utility, practitioners can make evidence-based decisions on when to prescribe radiographic imaging and what technologies and techniques to use in acquiring diagnostic images.”
The benefits of Cone beam 3D imaging are becoming widely recognized for implants, oral surgery, orthodontics, and other specialties because of the additional vital information that scans provide. This latest advancement of i-CAT’s award-winning technology offers a range of innovative features that deliver increased clarity, ease-of-use, and control.
To access the Abstract for Dr. Ludlow’s latest research on radiation dose, visit: http://www.ajodo.org/article/S0889-5406%2813%2900774-9/abstract?source=aemf
Dr. Ludlow is not an employee nor does he have any financial interest in Imaging Sciences International, LLC.
1Ludlow JB, Walker C. Assessment of phantom dosimetry and image quality of i-CAT FLX cone-beam computed tomography. Am J Orthod Dentofacial Orthop. 2013;144(6):802-817.