Publications by authors named "Wikum Bandara"
This study assesses radiation doses in cone beam computed tomography (CBCT) procedures in Sri Lanka, with the goal of establishing initial diagnostic reference levels (DRLs). Data from 1162 retrospective scans across four institutions were analyzed, and the medians of the pooled dose distribution for seven clinical indication categories were presented as the DRL values. The proposed DRLs based on clinical indications are 1013 mGy·cm2 for pathological conditions including cysts, tumors, and lesions, 1307 mGy·cm2 for implant planning, 1266 mGy·cm2 for presurgery assessment, and 1585 mGy·cm2 for evaluation of sinus and nasal pathology, temporomandibular disorder, and facial trauma.
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- Postmenopausal osteoporosis, driven by estrogen deficiency, significantly increases fracture risk, making early fracture prediction crucial yet difficult.
- A study on ovariectomized rats aimed to investigate changes in inflammation, oxidative stress, and bone properties post-surgery, testing new imaging techniques for early detection of bone alterations.
- Results indicated that while OVX rats showed increased inflammation and oxidative stress, changes in bone hydration measured by ultrashort echo time MRI were noticeable as early as 2 weeks after surgery, although these did not correlate with bone turnover rates in the assessed time frame.