[The impact of 18F-fluorodeoxyglucose positron emission tomography (FDG-PET) on planning of radiotherapy].
OBJECTIVE
To determine the impact of 18F-fluorodeoxyglucose positron emission tomography (FDG-PET) on patient management in radiotherapy.


METHODS
One hundred sixty-nine consecutive patients with different malignant tumors were analyzed. Whole-body FDG-PET was performed for staging before radiotherapy. The strategy of radiotherapy before and after PET scanning was compared and the change in the treatment management determined.


RESULTS
In 47(28%) of 169 patients PET results changed patient management in radiotherapy. In 19 patients (11%) radiotherapy was not performed after PET. In 16 patients (10%) PET results changed the intention of radiation treatment (curative/palliative). Correction of radiation dose was made in 16 patients (10%). Correction of the volume of the exposure area was made in 12 patients (7%). Tumor outside the field of view was missed in only 2 patients with a regional PET scan.


CONCLUSIONS
In this retrospective analysis the information provided by FDG-PET contributes to a substantial change in radiotherapy strategy.
Dizendorf
E
E
Baumert
B
B
von Schulthess
G K
GK
Luetolf
U M
UM
Steinert
H C
HC
D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D009369:Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000532:radiotherapy*; D019275:Radiopharmaceuticals; D011878:Radiotherapy / Q000379:methods; D012189:Retrospective Studies; D014055:Tomography, Emission-Computed
D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18
Vliianie pozitronnoĭ émissionnoĭ tomografii s 18F-ftorodeoksigliukozoĭ na planirovanie luchevoĭ terapii.