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    Use of artificial neural networks to predict biological outcomes for patients receiving radical radiotherapy of the prostate.

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    Authors
    Gulliford, Sarah L
    Webb, Steve
    Rowbottom, Carl G
    Corne, David W
    Dearnaley, David P
    Affiliation
    Joint Department of Physics, Institute of Cancer Research and Royal Marsden NHS Trust, Sutton, Surrey SM2 5PT, UK.
    Issue Date
    2004-04
    
    Metadata
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    Abstract
    BACKGROUND AND PURPOSE: This paper discusses the application of artificial neural networks (ANN) in predicting biological outcomes following prostate radiotherapy. A number of model-based methods have been developed to correlate the dose distributions calculated for a patient receiving radiotherapy and the radiobiological effect this will produce. Most widely used are the normal tissue complication probability and tumour control probability models. An alternative method for predicting specific examples of tumour control and normal tissue complications is to use an ANN. One of the advantages of this method is that there is no need for a priori information regarding the relationship between the data being correlated. PATIENTS AND METHODS: A set of retrospective clinical data from patients who received radical prostate radiotherapy was used to train ANNs to predict specific biological outcomes by learning the relationship between the treatment plan prescription, dose distribution and the corresponding biological effect. The dose and volume were included as a differential dose-volume histogram in order to provide a holistic description of the available data. RESULTS: It was shown that the ANNs were able to predict biochemical control and specific bladder and rectum complications with sensitivity and specificity of above 55% when the outcomes were dichotomised. It was also possible to analyse information from the ANNs to investigate the effect of individual treatment parameters on the outcome. CONCLUSION: ANNs have been shown to learn something of the complex relationship between treatment parameters and outcome which, if developed further, may prove to be a useful tool in predicting biological outcomes.
    Citation
    Use of artificial neural networks to predict biological outcomes for patients receiving radical radiotherapy of the prostate. 2004, 71 (1):3-12 Radiother Oncol
    Journal
    Radiotherapy and Oncology
    URI
    http://hdl.handle.net/10541/77922
    DOI
    10.1016/j.radonc.2003.03.001
    PubMed ID
    15066290
    Type
    Article
    Language
    en
    ISSN
    0167-8140
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.radonc.2003.03.001
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