Fractal Dimensions of Ductal Patterns in the Parotid Glands of Normal Subjects and Patients with Sjogren Syndrome

Use of fractal analysis in dental images: a systematic review

“…The exams most used for FA were panoramic radiographs (34 articles), [10][11][12]15,16, periapical radiographs (21 articles), 2,5,45-63 and cone beam CT (CBCT) (15 articles). 1,[64][65][66][67][68][69][70][71][72][73][74][75][76][77] Bitewing radiography, 63,78-80 micro-CT, [81][82][83] ultrasound, 84,85 sialography, 18,86 and lateral cephalometric radiography 87 were also found in this review (Figure 4). The included studies showed different sample sizes.…”

Fractals in dentistry

“…Honda et al [137] studied sialographic images of ductal patterns of the parotid glands in patients with Sjö gren's syndrome and a control group. They measured FD with a modified pixel dilation method, depicted in [137,138].…”

“…They measured FD with a modified pixel dilation method, depicted in [137,138]. They reported a lower FD in the group affected by Sjö gren's syndrome when compared to the normal group.…”

“…In the middle of the last century, sialography was the ideal technique to address parotid gland information, to diagnose and monitor Sjö gren's syndrome, up to the fact that there is a sialographic stage classification for the evolution of the disease, proposed by Rubin and Holt [139]. The work of Honda et al [137] shows how FD is able to [ ( ) T D $ F I G ] quantitatively check the Rubin and Holt classification, since they found significant FD differences between patients with stage 1 (punctuate) and with stage 2 (globular).…”

Η χρησιμότητα της μορφοκλασματικής διάστασης (fractal dimension) και η μελέτη των φασματικών χαρακτηριστικών στην οξεία λεμφοβλαστική λευχαιμία της παιδικής ηλικίας

“…H FD µπορεί επίσης να χρησιµοποιηθεί στην απεικόνιση των σιελογόνων αδένων [54]. Έχει µελετηθεί η χρήση της FD σε σιελογραφίες για την παρακολούθηση σε ασθενείς µε σύνδροµο Sjongren [55].…”