{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,29]],"date-time":"2025-09-29T08:21:36Z","timestamp":1759134096220},"reference-count":40,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2010,1,28]],"date-time":"2010-01-28T00:00:00Z","timestamp":1264636800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Applied Clin Med Phys"],"published-print":{"date-parts":[[2010,12]]},"abstract":"<jats:p>Radiation therapy for advanced Hodgkin's disease often requires large fields and may result in significant exposure of normal tissues to ionizing radiation. In long\u2010term survivors, this may increase the risk for late toxicity including secondary malignancies. 3D CRT has been successfully used to treat this disease but treatment delivery is often complex requiring matching of photon with electron beams, and utilization of field\u2010in\u2010field techniques and of partial transmission blocks. HT is an arc\u2010rotational intensity modulated radiation therapy technique proven to achieve superior target dose conformality and sharp dose gradients around critical normal tissues. HT, however, has also been associated with higher volumes of low\u2010dose regions in normal tissues and, therefore, higher integral dose. The present study was undertaken to compare the dosimetry of 3D CRT to HT in a pediatric patient with advanced HD. Clinical target volume (CTV) included bilateral lower cervical and supraclavicular areas, mediastinum, bilateral hili, left axilla and bilateral diaphragmatic lymph nodes. The planning target volume (PTV) was derived by circumferentially expanding the CTV by 1 cm. Whole lung and heart irradiation was also planned due to bilateral pleural and pericardial effusions. The prescribed radiation dose was 21 Gy to the PTV and 10.5 Gy to the whole lung and heart. Target coverage was comparable for both plans. The minimum, maximum, and mean PTV doses were 18.61 Gy, 22.45 Gy and 21.52 Gy with 3D CRT and 19.85 Gy, 22.36 Gy and 21.39 Gy with HT, respectively. HT decreased mean normal tissue dose by 21.6% and 20.07% for right and left breast, 20.40% for lung, 30.78% for heart, and 22.74% for the thyroid gland. Integral dose also decreased with HT by 46.50%. HT results in significant dosimetric gain related to normal tissue sparing compared to 3D CRT. Further studies are warranted to evaluate clinical applications of HT in patients with HD.<\/jats:p><jats:p>PACS number: 87.53.Kn<\/jats:p>","DOI":"10.1120\/jacmp.v11i1.3042","type":"journal-article","created":{"date-parts":[[2017,2,27]],"date-time":"2017-02-27T22:07:47Z","timestamp":1488233267000},"page":"77-87","source":"Crossref","is-referenced-by-count":13,"title":["Helical tomotherapy in the radiotherapy treatment of Hodgkin's disease \u2010 a feasibility study"],"prefix":"10.1002","volume":"11","author":[{"given":"Maria T.","family":"Vlachaki","sequence":"first","affiliation":[{"name":"Department of Radiation Oncology BC Cancer Agency\u2010Vancouver Island Centre  Victoria BC Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sanath","family":"Kumar","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology Henry Ford Hospital  Detroit MI 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