Search results for "Treatment planning"

showing 3 items of 83 documents

Chronische thromboembolische pulmonale Hypertonie: Diagnostische Wertigkeit von Mehrschicht-CT und selektiver Pulmonalis-DSA

2002

Purpose To evaluate the diagnostic impact of multislice-CT and selective pulmonary DSA in chronic thromboembolic pulmonary hypertension (CTEPH). Methods 994 vessel segments of 14 consecutive patients with CTEPH were investigated with multislice-CT (slice thickness 3 mm, collimation 2.5 mm, reconstruction intervall 2 mm) and selective pulmonary DSA (posterior-anterior, 45 degrees oblique, and lateral projection. Analysis was performed by 2 investigators independently for CT and DSA. Diagnostic criteria were occlusions and non-occlusive changes like webs and bands, irregularities of the vessel wall, diameter reduction and thromboembolic depositions at different levels from central pulmonary a…

medicine.medical_specialtymedicine.diagnostic_testVascular diseasebusiness.industryRespiratory diseasemedicine.diseasePulmonary hypertensionbody regionsAngiographymedicineRadiology Nuclear Medicine and imagingChronic thromboembolic pulmonary hypertensionMultisliceRadiologyTomographybusinessRadiation treatment planningRöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren
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Commissioning and quality assurance procedures for the HDR Valencia skin applicators

2016

The Valencia applicators (Nucletron, an Elekta company, Elekta AB, Stockholm, Sweden) are cup-shaped tungsten applicators with a flattening filter used to collimate the radiation produced by a high-dose-rate (HDR) 192 Ir source, and provide a homogeneous absorbed dose at a given depth. This beam quality provides a good option for the treatment of skin lesions at shallow depth (3-4 mm). The user must perform commissioning and periodic testing of these applicators to guarantee the proper and safe delivery of the intended absorbed dose, as recommended in the standards in radiation oncology. In this study, based on AAPM and GEC-ESTRO guidelines for brachytherapy units and our experience, a set …

medicine.medical_specialtymedicine.medical_treatmentBrachytherapybrachytherapylcsh:MedicineCollimated light030218 nuclear medicine & medical imaging03 medical and health sciences192Ir0302 clinical medicine<SUP>192</SUP>IrmedicineDosimetryRadiology Nuclear Medicine and imagingMedical physicscommissioningRadiation treatment planningQAReview Paperdosimetrybusiness.industryValencia applicatorslcsh:RVisual inspectionOncologyHomogeneous030220 oncology & carcinogenesisAbsorbed dosebusinessQuality assuranceJournal of Contemporary Brachytherapy
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Maxillary bone lesions in McCune-Albright syndrome:a case report

2011

Abstract Objectives In this study, we report on the clinical maxillary manifestations of a patient affected by McCune-Albright syndrome and the implications for orthodontic therapy. Materials and methods A male, 8-year-old patient was examined at the Department of Orthodontics of the University of L’Aquila for a problem of anterior open-bite. In the clinical examination, a small swelling of the left hemi-maxilla was seen in the area corresponding to the root apex of 16 and under the tooth buds of 14 and 15. In a panoramic radiograph, a radio-opaque area was detected in this zone. From the computer tomography examination, a bone lesion was identified. Results Identification of this bone lesi…

musculoskeletal diseasesMalemedicine.medical_specialtyPanoramic radiographOrthodonticsPhysical examinationFibrous Dysplasia PolyostoticMcCune–Albright syndromemedicineParanasal Sinus DiseasesHumansCraniofacialRadiation treatment planningChildMaxillary bone lesions McCune-Albright syndromemedicine.diagnostic_testbusiness.industryPatient affectedFibrous dysplasiaOpen Bitemedicine.diseaseMaxillary DiseasesSurgeryBone lesionRadiologybusinessTomography X-Ray Computed
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