Background: Internal mammary lymph nodes (IMNs) are a potential site of metastasis for breast cancer. Targeting IMNs as part comprehensive regional nodal irradiation comes at the cost higher unwanted doses to critical nearby organs risk. Thus, efficacy and safety different radiotherapy techniques coverage this area remain elusive. Objectives: We present dosimetric comparison between partially w...

PURPOSE To investigate the effect of the marker placement on the correlation relationship between the motions of external markers and the internal target under different breathing patterns for several lung cancer patients. METHOD AND MATERIAL To monitor and record simultaneous motions of internal target and associated surrogate markers during respiratory gated radiotherapy, an infrared camera...

OBJECTIVE To evaluate incidental irradiation of the internal mammary lymph nodes (IMLNs) through opposed tangential fields with conventional two-dimensional (2D) or three-dimensional (3D) radiotherapy techniques and to compare the results between the two techniques. MATERIALS AND METHODS This was a retrospective study of 80 breast cancer patients in whom radiotherapy of the IMLNs was not indi...

Aims Exposure of the heart to radiation increases risk ischaemic disease, proportionate mean dose (MHD). Radiotherapy techniques including proton beam therapy (PBT) can reduce MHD. The aims this study were quantify MHD reduction achievable by PBT compared with volumetric modulated arc in breath hold (VMAT-BH) patients pectus excavatum (PEx), identify an anatomical metric from a computed tomogra...

BACKGROUND The single most distressing symptom for patients with advanced esophageal cancer is dysphagia. Amongst the more effective treatments for relief of dysphagia is insertion of a self-expanding metal stent (SEMS). It is possible that the addition of a palliative dose of external beam radiotherapy may prolong the relief of dysphagia and provide additional survival benefit. The ROCS trial ...

Abstract Funding Acknowledgements Type of funding sources: None. Background An increasing number patients need cardiac implantable electronic devices (CIED) for bradycardia or to prevent sudden death. At the same time many require radiotherapy oncologic reasons. Interaction between CIEDs and ionizing radiations may cause several dysfunctions: electromagnetic interferences due oversensing, CIED ...

BACKGROUND Prone positioning for breast radiotherapy is preferable when the aim is a reduction of the dose to the ipsilateral lung or the heart in certain left-sided cases. MATERIALS AND METHODS In 100 breast cancer cases awaiting postoperative whole-breast radiotherapy, conformal radiotherapy plans were prospectively generated in both prone and supine positions. The axillary nodal region (le...

AIM OF THE STUDY To review management and outcomes in patients with stage I seminoma after orchidectomy. MATERIAL AND METHODS Between 1979 and 2004 a total 292 patients with stage I seminoma were treated with adjuvant chemotherapy or radiotherapy or were placed on surveillance. Median age at diagnosis was 36 years (range 20-69), with median follow-up 76.5 months (range 11-294). Of the patient...