Sökning: "Dose planning"

Visar resultat 11 - 15 av 120 avhandlingar innehållade orden Dose planning.

  1. 11. Conventional spiral and low-dose computed mandibular tomography for dental implant planning

    Författare :Annika Ekestubbe; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Artifacts; Dental Implantation; Endosseous; methods; Dental Implants; Humans; Jaw; Edentulous; radiography; Mandible; radiography; Patient Care Planning; Phantoms; Imaging; Radiation Dosage; Radiography; Dental; methods; Reproducibility of Results; Tomography; X-Ray; instrumentation; methods; Tomography; X-Ray Computed; methods;

    Sammanfattning : Absorbed doses to radiosensitive organs in the head and neck from pre-implant conventional hypocycloidal, conventional spiral and computed tomography (CT) were measured with thermoluminescent dosimeters in an anthropomorphic phantom head. From conventional tomography organ doses, except to the major salivary glands, were below 0.2 mGy. LÄS MER

  3. 12. Development of dose calculation methods for brachytherapy treatment planning

    Författare :Åsa K. Carlsson Tedgren; Stockholms universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Brachytherapy; Radiotherapy; Strålbehandling;

    Sammanfattning : .... LÄS MER

  4. 13. Modelling of the electrochemial treatment of tumours

    Författare :Eva Nilsson; KTH; []
    Nyckelord :cancer; direct current; dose planning; electrochemical treatment; electrotherapy; mathermatical modelling; tumour;

    Sammanfattning : The electrochemical treatment (EChT) of tumours entails thattumour tissue is treated with a continuous direct currentthrough two or more electrodes placed in or near the tumour.Promising results have been reported from clinical trials inChina, where more than ten thousand patients have been treatedwith EChT during the past ten years. LÄS MER

  5. 14. Monte Carlo particle transport codes for ion beam therapy treatment planning : Validation, development and applications

    Författare :Till Tobias Böhlen; Irena Gudowska; Oliver Jäkel; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Monte Carlo; ion beam therapy; treatment planning; cancer therapy; microdosimetry; Medical Radiation Physics; medicinsk strålningsfysik;

    Sammanfattning : External radiotherapy with proton and ion beams needs accurate tools for the dosimetric characterization of treatment fields. Monte Carlo (MC) particle transport codes, such as FLUKA and GEANT4, can be a valuable method to increase accuracy of dose calculations and to support various aspects of ion beam therapy (IBT), such as treatment planning and monitoring. LÄS MER

  7. 15. Treatment Planning of High Dose-Rate Brachytherapy - Mathematical Modelling and Optimization

    Författare :Björn Morén; Torbjörn Larsson; Åsa Carlsson Tedgren; Bram Gorissen; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Cancer is a widespread class of diseases that each year affects millions of people. It is mostly treated with chemotherapy, surgery, radiation therapy, or combinations thereof. High doserate (HDR) brachytherapy (BT) is one modality of radiation therapy, which is used to treat for example prostate cancer and gynecologic cancer. In BT, catheters (i. LÄS MER