Carbon-Ion Radiotherapy
Principles, Practices, and Treatment Planning
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26 Result(s)
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Article
Open AccessInvolved-field radiotherapy in older patients with superficial thoracic esophageal squamous cell carcinoma: long-term outcomes and recurrence patterns
An optimal radiotherapy field for superficial esophageal carcinoma is yet to be established. We evaluated the long-term outcomes and recurrence patterns of involved-field radiotherapy (IFRT) in older patients ...
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A long-term survival case of bladder cancer with distant metastases: abscopal effect of brain metastases after stereotactic radiotherapy with immune checkpoint blockade therapy to lung metastases
Brain metastases from bladder cancer are rare, with a poor prognosis. There is no standard treatment for bladder cancer with brain metastases; thus, palliative therapy is generally provided. We report a case o...
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Open AccessRisk of secondary malignancy after radiotherapy for breast cancer: long-term follow-up of Japanese patients with breast cancer
There have been very few reports of secondary malignancies after breast cancer treatment in Asia, particularly in Japan. This study aimed to evaluate the risk of secondary malignancies after radiotherapy (RT) ...
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Ipsilateral breast tumor control following hypofractionated and conventional fractionated whole-breast irradiation for early breast cancer: a long-term follow-up
Long-term follow-up of Japanese women with breast cancer who underwent hypofractionated whole-breast irradiation (HF-WBI) has not been well documented. Therefore, we compared the treatment results of HF-WBI an...
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Abscopal complete regression of hepatocellular carcinoma with multiple pleural metastases
Hepatocellular carcinoma (HCC) with extrahepatic metastasis is rare, and its prognosis is extremely poor. There is no standard treatment for HCC with extrahepatic metastasis. We report a case of abscopal effec...
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Open AccessParathyroid carcinoma in a 13-year-old girl with a long-term survival
Parathyroid carcinoma as a cause of primary hyperparathyroidism in children is extremely rare. We report a case of parathyroid carcinoma which occurred in a 13-year-old girl who survived for more than 45 years...
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The 5-year outcomes of moderately hypofractionated radiotherapy (66 Gy in 22 fractions, 3 fractions per week) for localized prostate cancer: a retrospective study
Hypofractionated radiotherapy using fewer and larger fractional doses may be more beneficial than conventional external-beam radiotherapy for localized prostate cancer. We evaluated the 5-year outcomes of mode...
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One shot of carbon-ion radiotherapy cured a 6-cm chemo-resistant metastatic liver tumor: a case of breast cancer
The standard treatment for metastatic liver tumor from breast cancer is systemic medical treatment, and there is controversy regarding the value of local treatment. However, there are some exceptional cases th...
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The current status of education and career paths of students after completion of medical physicist programs in Japan: a survey by the Japanese Board for Medical Physicist Qualification
To standardize educational programs and clinical training for medical physics students, the Japanese Board for Medical Physicist Qualification (JBMP) began to accredit master’s, doctorate, and residency progra...
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Comparison of hypofractionated and conventionally fractionated whole-breast irradiation for early breast cancer patients: a single-institute study of 1,098 patients
To evaluate the efficacy and safety of hypofractionated whole-breast irradiation (HF-WBI) compared with conventionally fractionated (CF) WBI.
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First experience of carbon-ion radiotherapy for early breast cancer
Breast cancer is increasingly being detected at earlier stages, and partial breast irradiation for patients with low-risk-group tumor has come to be applied in the US and Europe as an alternative to whole-bre...
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Gynecological Melanoma
Primary malignant melanoma (MM) of the gynecological organs is extremely rare. Surgical resection has been performed as the best modality for this tumor, although all patients are not necessarily suitable cand...
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Metastatic Tumors
Metastatic tumor without systemic extension, so-called oligometastasis, is a good candidate for carbon ion radiotherapy (C-ion RT). Careful patient selection must be needed before starting C-ion RT. The fracti...
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Breast Cancer
Breast cancer is a major health problem for women all over the world. In recent years, about half of the cases detected in Japan were below stage I. The standard care for early-stage breast cancer is breast-co...
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The role of chemoradiotherapy in patients with unresectable T4 breast tumors
Unresectable T4 tumors of the breast are usually treated with systemic therapies, while the role of local therapies remains debatable. This study aims to evaluate the effectiveness of chemoradiotherapy as a pa...
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Comparison of total MU and segment areas in VMAT and step-and-shoot IMRT plans
We compared treatment plans for volumetric intensity-modulated arc therapy (VMAT) and step-and-shoot intensity-modulated radiation therapy (IMRT) in terms of their monitor unit (MU) and segment area at each co...
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Estimation of anxiety and depression in patients with early stage breast cancer before and after radiation therapy
Most previous studies about anxiety and depression in patients undergoing radiotherapy have only measured the quantity of general depression and anxiety and have not studied specific periods of involvement. Th...
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Full-dose capecitabine with local radiotherapy: one of the treatment options for inoperable T4 breast cancer
A 48-year-old woman presented with a 15-cm diameter tumor in her left breast with fixation to the chest wall and palpable axillary lymph nodes. Pathology study showed pure-type mucinous carcinoma. Pretreatment...
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An investigation of anxiety about radiotherapy deploying the Radiotherapy Categorical Anxiety Scale
Radiotherapy is one of the major methods for treating cancer, but many patients undergoing radiotherapy have deep concerns about receiving radiation treatment. This problem is not generally appreciated and has...
