Effective dosages for recording Veraviewepocs dental panoramic images: analog film, digital, and panoramic scout for CBCT.

Objective: The aim of this study was to evaluate the effective doses from analog film, panoramic digital, and panoramic scout for cone-beam computerized tomography (CT).

Study Design: Three different types of Veraviewepocs machines were investigated: Veraviewepocs Conventional, Veraviewepocs Digital, and Veraviewepocs 3D (Morita, Kyoto, Japan). Organ absorbed doses were measured using an anthropomorphic phantom loaded with thermoluminescent dosimeters (TLD 100H) at 16 sites located in sensitive organs.

Cone-beam computed tomography for routine orthodontic treatment planning: a radiation dose evaluation.

Introduction: Because of the advantages and possibilities of cone-beam computed tomography (CBCT), orthodontists use this method routinely for patient assessment. The aim of this study was to compare the radiation doses for conventional panoramic and cephalometric imaging with the doses for 2 different CBCT units and a multi-slice CT unit in orthodontic practice.

Methods: The absorbed organ doses were measured by using an anthropomorphic phantom loaded with thermoluminescent dosimeters at 16 sites related to sensitive organs.

Combination of surgical resection and HDR-brachytherapy in patients with recurrent or advanced head and neck carcinomas.

Aim: Due to the limited therapeutic options, the management of previously pre-treated recurrent head and neck carcinomas remains a challenging problem. The use of hyper-fractionated-accelerated interstitial high-dose-rate brachytherapy (HDR-BT) might be able to improve safety and survival after surgical resection.

Material And Methods: From 2000 to 2006, 13 patients with pre-treated, recurrent head and neck cancer (oral, maxillary sinus, lips) were treated in a curative approach by resection the recurrent tumour and HDR-BT.

Helmet mold-based surface brachytherapy for homogeneous scalp treatment: a case report.

Unlabelled: BACKGROUND/CASE REPORT: External-beam radiotherapy of complex-shaped areas is sometimes difficult to realize. In a patient with chronic lymphatic leukemia (CLL) infiltrates of the skin of the whole scalp, conventional external-beam radiotherapy with electrons or photons was not able to treat the target sufficiently. Thus, the authors developed a brachytherapy moulage technique using a customized helmet (polyethylene) with flexible interstitial plastic applicators and irradiated the target very homogeneously with a microselectron (192)Ir HDR (high-dose-rate) source (2.