High tangents radiation

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August undefined, 2024

WebJun 2, 2024 · Tangential field irradiation in breast cancer potentially treats residual tumor cells in the axilla after sentinel lymph node biopsy (SLNB). In recent years, hypofractionated radiotherapy has gained importance and currently represents the recommended standard in adjuvant breast cancer treatment for many patients. Webconditions are met. As a replacement to this procedure, high tan-gent radiation therapy (HTRT) that intentionally irradiates the axillary lymph node region was examined. The field …

High Tangent Radiation Therapy With Field-in-Field …

WebBriefly, after surgery, patients received postoperative breast and axillary irradiation with high tangent fields to a total dose of 50 Gy in 25 fractions with or without boost irradiation to … WebSep 20, 2024 · Breast cancer, axillary lymph node dissection, sentinel lymph node biopsy, high tangent radiation therapy, field-in-field technique Introduction Most patients with early-stage breast cancer are given breast-conserving treatment consisting of wide excision and postoperative radiotherapy. onsite truck and equipment repair phoenix az

Coverage of axillary lymph nodes with high tangential fields in …

WebOct 15, 2024 · Although the trial did not allow for the use of a third field of radiation (ie, regional nodal treatment), review of the study found substantial use of high tangent … Webreceived adjuvant radiotherapy. Radiation fields were categorized as standard tangents, high tangents, comprehen-sive (tangents plus supraclavicular), or partial breast to reflect coverage of the axilla. Standard tangents included both prone and supine positions. Regional failure was defined as recurrence in the ipsilateral supraclavicular ... WebMar 29, 2024 · High tangents are used with supine treatments in patients with the low-volume nodal disease to increase nodal coverage while minimizing toxicities. Our study aims to evaluate nodal coverage for patients treated in the prone position with high tangents. on site truck repairs

Radiation Field Design in the ACOSOG Z0011 (Alliance) Trial

Whole breast irradiation with high tangents in the prone …

While standard supine tangents include incidental radiation to the axilla, Reznik et al. noted improvement of axillary coverage with high tangent radiation fields, from 51 to 79% coverage by 95% of the prescribed dose for axillary level I and from 26 to 51% coverage for axillary level II . See more Forty-one patients were identified who were planned with high tangents using two tangentially opposed beams in the prone position. Patient … See more The average of the mean cardiac dose for all patients was 0.87 Gy (0.13 Gy for the left breast and 0.05 Gy for right breast, p< 0.001). The average … See more The mean coverage of the level I and level II axilla defined as the percent volume covered by 90% of the prescription dose was 88.7% (range 30.5–100%, standard deviation 17.9) and … See more Toxicity data was available for 38 of the 41 patients. The median follow-up was 25.6 months since the start of RT. Maximal grade of … See more WebFeb 13, 2014 · The aim of this study is to evaluate the coverage of axillary nodal volumes with high tangent fields (HTF) in breast radiotherapy and to determine the utility of customised blocking. The treatment plans of 30 consecutive patients with early breast cancer were evaluated. The prescription dose was 50 Gy to the whole breast. Axillary level … on site truck repair phoenix azWebSRS is a type of external-beam radiation therapy that delivers a high dose of radiation to a precise area. While the name makes it sound like a surgery, SRS is a non-invasive … iodine in ethanol

"WebSep 20, 2024 · Purpose: We evaluated whether the field-in-field (FIF) technique improves the homogeneity of the target in high tangent radiation therapy (HTRT). Materials and … " - High tangents radiation

High tangents radiation

Analysis of axillary coverage during tangential radiation therapy to ...

WebCareful analysis of the pathologies of radiation-induced heart diseases after mantle field radiotherapy of patients for Hodgkin’s disease (thus receiving a near-homogeneous dose to their hearts) demonstrated that five different radiation-induced heart diseases were diagnosed, namely, pericarditis, myocardial fibrosis, coronary atherosclerosis le... WebMay 18, 2012 · Conventional and prone breast tangential fields were designed to encompass the whole breast while minimizing dose to lung and heart without special attention to ALN coverage as confirmed by the treating physician. No patients were treated with “high tangents.”

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Web2Division of Radiation Oncology, Gifu University Hospital, Gifu, Japan. 3Department of Surgical Oncology, Graduate School of Medicine, Gifu University, Gifu, Japan. ABSTRACT PuRPoSe: We evaluated whether the field-in-field (FIF) technique improves the homogeneity of the target in high tangent radiation therapy (HTRT). WebNov 30, 2024 · The feasibility of delivering high tangents in the prone position has never been reported.Methods Patients from 2012 to 2024 at a single institution who were …

WebThe majority of women received radiation therapy (277 women [89.6%] in the SLND alone group vs 263 women [88.9%] in the ALND group). An independent analysis of radiation fields in a subset of participants demonstrated no between-group difference in the use of high tangents, nodal irradiation, or no irradiation; 18.9% received protocol ... WebRepresentative examples of detailed radiation treatment records received and classiﬁed as receiving standard tangents, high tangents, or third-ﬁeld treatment. (A) Standard tangents. (B) High tangents. (C and D) Third-ﬁeld and matched tangents from a single patient. Radiation Field Design in the ACOSOG Z0011 Trial

WebMar 29, 2024 · Search life-sciences literature (41,927,999 articles, preprints and more) Search. Advanced search WebSep 20, 2024 · High tangent radiation therapy considers the cranial border of the irradiation field to be within 2 cm of the humeral head that receives high tangents. 16 The coverage …

WebAs a replacement to this procedure, high tangent radiation therapy (HTRT) that intentionally irradiates the axillary lymph node region was examined. The field-in-field (FIF) technique has become a widely preferred method for administering tangential whole-breast

WebApr 27, 2024 · The high dose of radiation delivered to the affected area causes tumors to shrink and blood vessels to close off over time following treatment, robbing the tumor of … on site two wordsWebFeb 7, 2011 · To determine the optimal radiation approach, it is helpful to speculate about the reasons for the very low axillary recurrence rate -- 0.5% -- despite the predicted 27% rate of additional axillary involvement. It is possible that systemic treatments have some effect in preventing disease recurrence. on site tv repairWebJan 1, 2005 · The data show that with the standard tangential irradiation fields, the average dose delivered to Levels I, II, III, and RN is 66% (standard deviation, or SD = 13%), 44% (SD = 18%), 31% (SD = 20%), and 70% (SD = 19%) of the prescribed dose, respectively. onsite tyre replacementWebSep 20, 2024 · High tangent radiation therapy considers the cranial border of the irradiation field to be within 2 cm of the humeral head that receives high tangents. 16 The coverage … iodine in seaweed sheetWebIn brief, for typical high tangent breast irradiation, the clinical target volume included the whole breast and the level I–II axillary nodal regions. After the dose distribution with the original tangential fields was calculated, the second set of ﬁelds was designed to avoid the hot region (a field-in-field technique). onsite \u0026 online hybridWebthermal radiation, process by which energy, in the form of electromagnetic radiation, is emitted by a heated surface in all directions and travels directly to its point of absorption … onsite ucdsbWebOct 1, 2024 · An analysis of the radiation field design in the trial noted that high-tangent fields were used in 50% of the patients assigned to the ALND arm and 53.6% of patients assigned to the SLND arm. 5 The use of high-tangent fields refers to increasing axillary coverage in tangential fields by increasing the superior field border to within 2 cm or ... on site truck repair shorewood