نتایج جستجو برای: radiotherapy of lung
تعداد نتایج: 21222598 فیلتر نتایج به سال:
Several studies have reported the advantages of the field-in-field (FIF) technique in breast radiotherapy, including dose reduction in the lungs by using lung field blocks. We evaluated the FIF technique with lung blocks for breast tangential radiotherapy. Sixteen patients underwent free breathing (FB) computed tomography (CT), followed by two CT procedures performed during breath hold after li...
Abstract: Lung cancer is leading cause of death due to malignancy. Non small cell lung cancer constitutes approximately 85% of all lung cancers. Despite advances in Lung cancer is leading cause of death due to malignancy. Non small cell lung cancer constitutes approximately 85% of all lung cancers. Despite advances in early detection of non small cell lung cancer, about 75%-80% patients with lo...
BACKGROUND AND PURPOSE Patients with non-small cell lung cancer (NSCLC) often have inhomogeneous lung perfusion. Radiotherapy planning computed tomography (CT) scans have been accurately co-registered with lung perfusion single photon emission computed tomography (SPECT) scans to design radiotherapy treatments which limit dose to healthy 'perfused' lung. PATIENTS AND METHODS Patients with loc...
Background and purpose: Breast‑conserving surgery followed by radiation therapy to the whole breast is now recognized as a standard strategy in patients with breast cancer. Recommended technique for radiotherapy is whole breast irradiation followed by boost to the tumor bed. This study aimed to compare the dosimetric parameters of electron and photon beams for boosting irradiation in post‑lump...
Concurrent radiotherapy and chemotherapy is the main treatment for locally advanced non-small cell lung cancer. Acute Radiation Pneumonitis (ARP) is one of the most important complications of radiotherapy for lung cancer and is difficult to treat and causes high mortality rates. In this study, we reported a patient with grade IV ARP who underwent 2 months of radiotherapy. This patient showed si...
BACKGROUND AND AIMS The failure to reduce the mortality of patients with solid tumours is mainly a result of the early dissemination of cancer cells to secondary site, which is usually missed by conventional diagnostic procedures used for tumour staging. The possibility to use easily accessible body fluids as a source for circulating tumour cells (CTCs) detection enables longitudinal observatio...
PURPOSE The outcomes and toxicities of locoregionally recurrent non-small-cell lung cancer (NSCLC) patients treated with curative radiotherapy were evaluated in the modern era. MATERIALS AND METHODS Fifty-seven patients receiving radical radiotherapy for locoregionally recurrent NSCLC without distant metastasis after surgery from 2004 to 2014 were reviewed. Forty-two patients were treated wit...
Lung stereotactic ablative radiotherapy (SABR) is a method of delivering high 'ablative' doses of radiotherapy to tumours in the lung. It was developed at the Karolinska Institute in the early 1990s using the methods established in cranial radiosurgery with multiple beams prescribed to an isodose and using a custom designed stereotactic body frame for immobilisation. Since then, aligned with th...
Leiomyosarcoma is a rare entity in prostate but it is the most common type of prostate sarcomas in adult patients. In most reported series the prognosis is poor and the median survival is about 15-18 months. Hereby we present a 72 years old man who received combined modality treatment including radical surgery followed by adjuvant chemotherapy and radiotherapy. He has been well for 14 months, b...
PURPOSE/OBJECTIVE(S) IMRT allows dose escalation for large lung tumors, but respiratory motion may compromise delivery. A treatment plan that modulates fluence predominantly in the transversal direction and leaves the fluence identical in the direction of the breathing motion may reduce this problem. MATERIALS/METHODS Planning-CT-datasets of 20 patients with Stage I-IV non small cell lung can...
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