Conformal three-dimensional photon radiotherapy for paranasal sinus tumors.
BACKGROUND
Tumors in the nasal cavity and paranasal sinus are difficult to treat with radiotherapy. Usually, in addition to a two- or three-field photon technique, an interorbital electron field is required. This may result, however, in severe over- or underdosage, the latter being especially detrimental when occurring in the main tumor bulk.


RESULTS
We present a conformal three-dimensional treatment technique that provides sufficient interorbital dose with photons only while sparing the eyes, optic nerves and chiasm, and may be considered for selected tumors in this region.
Department of Clinical Radiology, University of Heidelberg, Im Neuenheimer Feld 400, D-69120 Heidelberg, Germany.
F
F
Lohr
A
A
Pirzkall
J
J
Debus
B
B
Rhein
A
A
Höss
W
W
Schlegel
M
M
Wannenmacher
D004307:Dose-Response Relationship, Radiation; D005260:Female; D006801:Humans; D008297:Male; D010255:Paranasal Sinus Neoplasms / Q000175:diagnosis / Q000532:radiotherapy*; D017785:Photons; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted / Q000379:methods*; D020266:Radiotherapy, Conformal / Q000379:methods*; D012680:Sensitivity and Specificity