A conformal technique for a ring shaped conjunctive lymphoma treatment.
Radiotherapy is commonly utilised as standard treatment in the so called mucosa-associated lymphoid tissues (MALT), due to the low probability of distant relapse. The particularities of the lesion, make necessary both energy degradation and beam conformation. To keep homogeneity within acceptable limits, a lengthener attached to the electron applicator has been devised to closely fit the anatomy of the patient. Considering the small area of the outcoming field, film dosimetry is preferred, since the dimensions of an ionisation chamber and even of a semiconductor probe might be comparable to the field size.
Department of Medical Physics, University Hospital Virgen Macarena, Sevilla, Spain.
R
R
Arráns
S
S
Alonso
F
F
Sánchez-Doblado
J A
JA
Sánchez-Calzado
A
A
Leal
M
M
Perucha
D000328:Adult; D000465:Algorithms; D000497:Alloys; D003230:Conjunctival Neoplasms / Q000532:radiotherapy*; D003300:Copper; D004867:Equipment Design; D005260:Female; D005373:Film Dosimetry; D006801:Humans; D018442:Lymphoma, B-Cell, Marginal Zone / Q000532:radiotherapy*; D019047:Phantoms, Imaging; D019904:Polymethyl Methacrylate; D011835:Radiation Protection / Q000295:instrumentation; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted; D020266:Radiotherapy, Conformal / Q000295:instrumentation / Q000379:methods*; D012666:Semiconductors; D015032:Zinc
D000497:Alloys; C048399:brass; D003300:Copper; D019904:Polymethyl Methacrylate; D015032:Zinc