Image segmentation in treatment planning for prostate cancer using the region growing technique
M Mazonakis, MSc1,
J Damilakis, MSc, PhD2,
H Varveris, MD, PhD3,
P Prassopoulos, MD, PhD4 and
N Gourtsoyiannis, MD, PhD4
1 Department of Medical Physics, University Hospital of Iraklion, PO Box 1352
2 Departments of Medical Physics
3 Radiotherapy
4 Radiology, Faculty of Medicine, University of Crete, Stavrakia, 711 10 Iraklion, Crete, Greece
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Figure 1. Prostate, bladder and rectum segmentation by applying the region growing technique in a pelvic CT image.
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Figure 2. Linear regression analysis of prostate slice volume obtained with the region growing technique and with manual tracing for 84 CT slices.
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Figure 3. Linear regression analysis of bladder slice volume obtained with the region growing technique and with manual tracing for 147 CT slices.
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Figure 4. Linear regression analysis of rectum slice volume obtained with the region growing technique and with manual tracing for 153 CT slices.
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Figure 5. Prostate delineation using the region growing technique results in segmentation leakage into the adjacent soft tissues. The leakage may be constrained by drawing a region around the prostate.
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Copyright © 2001 by the British Institute of Radiology.
