Volume : VII, Issue : XII, December - 2017

DOSE REDUCTION IN DIGITAL DENTAL PANORAMIC RADIOGRAPHY: MAKING IMAGING MUCH SAFER

Dr. Shirin Vashishth, Dr. Garima Sharma

Abstract :

 The present study investigated how much radiation dose can be reduced without adversely affecting the subjective image quality and diagnostic performance.                                                                                                                 Hundred patients having pathological findings and requiring panoramic radiographs were randomly divided into 4 groups based on reduction in tube current(30%,40%,50% and 60% reduction) with 25 patients per group. Two radiographs were obtained for each patient; first at constant exposure setting, second at reduced tube current. Three observers rated both images. Best image quality was seen at 6mA(40% reduction); but even at 5mA(50% reduction) and 4mA (60% reduction) the results were good and readily acceptable. No diagnostic details were lost even at last reduction. It was concluded that orthopantomographs captured at reduced tube current had slightly inferior image quality,  without any difference in the diagnostic performance. Thus, a reduction in tube current up to 60%(4mA) is recommended for routine digital panoramic radiography.  

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Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

DR. SHIRIN VASHISHTH, DR. GARIMA SHARMA, DOSE REDUCTION IN DIGITAL DENTAL PANORAMIC RADIOGRAPHY: MAKING IMAGING MUCH SAFER, INDIAN JOURNAL OF APPLIED RESEARCH : Volume-7 | Issue-12 | December-2017

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