How many times can we use a phosphor plate? A preliminary study
Küçük Resim Yok
Tarih
2009
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
British Inst Radiology
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Objectives: Digital radiography has become a useful tool in daily dental practice due to the advances in imaging technologies. Charge coupled devices (CCDs) and photostimulable phosphor plates (PSPs) are currently in use for dental imaging; however, the longevity of PSPs in dental practice is not yet established. The aim of this study was to determine the service life of PSPs in a clinical setting. Methods: Five unused PSPs were exposed with a conventional X-ray device and converted into digital images with Digora Optime (Soredex, Milwaukee, WI). These were recorded as the baseline images. Subsequent digital images of the plates were obtained after 20, 40, 60, 80, 100, 120, 140, 160, 180 and 200 exposures. All radiographic images were subtracted from the first digital image (baseline) and the mean grey values (MGVs) of the subtracted images were established using software. The data were grouped in 3 classes according to the number of exposures (20-80; 100-140; 160-200), and were analysed using variance analysis and chi(2) tests. Results: The MGVs of the subtracted images varied between 126.25 and 127.59, and the difference was not significant among the groups (P = 0.11). However, the differences between the MGVs of the plates oil each exposure settings were significantly different than those of the baseline image (P < 0.05). Conclusions: The findings of this study revealed that even though a slight deterioration occurred after the first exposure, each plate can be used up to 200 times. Further studies are required to reach a more concrete conclusion.
Açıklama
Anahtar Kelimeler
digital image, storage phosphor plates, subtraction radiography, durability
Kaynak
Dentomaxillofacial Radiology
WoS Q Değeri
Q3
Scopus Q Değeri
Q1
Cilt
38
Sayı
1
