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The article provides information on the need to develop several assets to diagnose facial or dental disease. Examination process is continued by attaining present illness' dental history after attaining the chief complaint. Patients had to share their medical problems with the clinicians to use the data in planning treatment. It says that examination results, along with information from the history of the patient, will be fused with clinical testing for the establishment of the diagnosis.

The purpose of this study is to investigate the influence of different computed tomography (CT) slice thickness on the dose calculation uncertainty in the planning volume and organs at risk. Two patients with brain tumors undergoing stereotactic treatment were selected and CT scans of the head with 2 mm slice thickness were performed. For the further analysis, slices were reconstructed so to have thickness of 2 mm across the area of the planning volume and 4 mm otherwise. For both CT series identical irradiation plans were calculated. Two scenarios were investigated: beams set-up where all beams are coplanar and beams set-up with non-coplanar beams. Dose-volume histograms (DVH) for organs at risk were calculated for both scenarios and compared. A dosimetric analysis using dose DVH was conducted to assess the potential clinical relevance of the findings. An important observation of this study is that dose calculated for fine structures (chiasm, optical nerves) was found to be very dependent on the slice thickness. A slice thickness of 2 mm appears to be recommendable for acquiring planning CT data for the patient undergoing stereotactic radiation therapy. [ABSTRACT FROM AUTHOR]