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Radiotherapy Questions and Answers
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03/24/19 22:43
Prof.Seegenschmiedt 
03/24/19 22:43
Prof.Seegenschmiedt 

Radiotherapy Questions and Answers

Radiation therapy is usually applied on orthovoltage machines (with 100 - 120 kV X-rays) or linear accelerators (with 4 - 6 MeV electrons). On both radiation machines the intention is to provide sufficient dose to the palmar side of the hand and avoid dose to the dorsal side of the hand.

With this in mind a recent publication from Ruby Meridith et al. regarding dose optimization is important. They show that the application of sufficient bolus material (5 - 10mm) is important to place on the treatment area to adapt the dose depth profile. The enclosed figure demonstrate the dose distribution within the hand in a cross section view:

Figure 1: Dupuytren_RT_3D-Planning

The different depth dose profiles of electrons (6 MeV and 18 MeV) and photons (6 MV) are demonstrated in the other figure.

Figure 2: Radiation-Dose-Depth-Profile of Electrons-and-Photons

The link to the publication is: http://nobleresearch.org/Content/PDF/5/2...8511.2017-1.pdf
Meredith R et al., J Clin Radiat Oncol. 2017, 2(1):1-3 / http://dx.doi.org/10.14312/2397-8511.2017-1
Title of Publication: Dosimetric comparison of radiation methods for palmar fibrosis

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Dupuytren_RT_3D-Planning.jpg Dupuytren_RT_3D-Planning.jpg (22x)

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Radiation-Dose-Depth-Profile of Electrons-and-Photons.jpg Radiation-Dose-Depth-Profile of Electrons-and-Photons.jpg (24x)

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03/26/19 11:04
wach 

Administrator

03/26/19 11:04
wach 

Administrator

Radiotherapy More Questions and Answers

Further answers, part 1, by Prof. Seegenschmiedt to questions from patients regarding radiotherapy can be found at

How to contact Prof. Seegenschmiedt, visiting Essen https://www.dupuytren-online.info/Forum_...2268&page=4

Definition of Dupuytren's Disease progression https://www.dupuytren-online.info/Forum_...51176265.html#3

Clinical examination of Dupuytren's prior to RT https://www.dupuytren-online.info/Forum_...1551611955.html

Appropriate size of field https://www.dupuytren-online.info/Forum_...50943427.html#2

Typical reactions after RT https://www.dupuytren-online.info/Forum_...52841879.html#6

Aftercare following RT https://www.dupuytren-online.info/Forum_...1551517552.html

Treatment of DD after RT (re-radiation) https://www.dupuytren-online.info/Forum_...48247359.html#6

RT after surgery https://www.dupuytren-online.info/Forum_...41924404.html#7

MSK imaging by radiologist: https://www.dupuytren-online.info/Forum_...56416538.html#3

Acute Trauma and Induction of Dupuytren Disease: https://www.dupuytren-online.info/Forum_...55095603.html#1

Data set for first assessment of Ledderhose disease: https://www.dupuytren-online.info/Forum_...1555074640.html

Data form for first assessment of Dupuytren disease: https://www.dupuytren-online.info/Forum_...1555069849.html

Fibrosis and Fibromatosis: https://www.dupuytren-online.info/Forum_...53808308.html#3

Follow-up assessment of Dupuytren & Ledderhose and Data form https://www.dupuytren-online.info/Forum_...1558195801.html#1

Patient Related Outcome Measures (PROMs) - Quick-DASH: https://www.dupuytren-online.info/Forum_...1558198651.html

To treat or not to treat (early) that is the question: https://www.dupuytren-online.info/Forum_...1559373063.html

Patchwork radiotherapy, overlapping and edge of fields: https://www.dupuytren-online.info/Forum_...59783926.html#6

10/19/19 14:21
spanishbuddha 

Administrator

10/19/19 14:21
spanishbuddha 

Administrator

Radiotherapy Questions and Answers, part 2

Further information, part 2, by Prof. Seegenschmiedt regarding radiotherapy can be found at

Follow-Up Form for Assessment of Dupuytren / Ledderhose Disease https://www.dupuytren-online.info/Forum_...58195801.html#1

Is there an optimal time interval between 2 RT series? https://www.dupuytren-online.info/Forum_...1571409384.html

What is the best advice for hand care after completing radiotherapy? https://www.dupuytren-online.info/Forum_...1571427244.html

Radiation and Dupuytren’s https://dupuytrens.org/radiation-and-dupuytren-disease/

Publications and literature on Radiotherapy for treating Dupuytren’s https://dupuytrens.org/dupuytren-literature-radiotherapy/

List of all posts on the forum by Prof Seegenschmiedt https://www.dupuytren-online.info/Forum_....Seegenschmiedt

Miscellaneous

ALCOHOL as RISK FACTOR for DUPUYTREN & LEDDERHOSE DISEASE ?!https://www.dupuytren-online.info/Forum_...1564937697.html

Attachment, Professor Seegenschmiedt practice guide for Individuals affected by DD/LD:

Edited 11/25/19 15:58

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Prof Seegenschmiedt Practice Guide for DD and LD.pdf Prof Seegenschmiedt Practice Guide for DD and LD.pdf (1x)

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