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.
Lohr
F
F
Department of Clinical Radiology, University of Heidelberg, Im Neuenheimer Feld 400, D-69120 Heidelberg, Germany.
Pirzkall
A
A
Debus
J
J
Rhein
B
B
Höss
A
A
Schlegel
W
W
Wannenmacher
M
M
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