18F-Fluorodeoxythymidine PET for Evaluating the Response to Hyperthermic Isolated Limb Perfusion for Locally Advanced Soft-Tissue Sarcomas
Lukas B. Been1,2,
Albert J.H. Suurmeijer3,
Philip H. Elsinga1,
Pieter L. Jager1,
Robert J. van Ginkel2 and
Harald J. Hoekstra2
1 Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; 2 Department of Surgical Oncology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; and 3 Department of Pathology and Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands

View larger version (6K):
[in this window]
[in a new window]
|
FIGURE 1. (A) Correlation between SUVmax and mitotic index before HILP (r = 0.87, P = 0.001). (B) Correlation between SUVmean and mitotic index before HILP (r = 0.82, P = 0.004).
|
|

View larger version (45K):
[in this window]
[in a new window]
|
FIGURE 2. Examples of 18F-FLT PET, MRI, and software fusion images of high-grade myxofibrosarcoma before and after HILP. After HILP, this tumor showed 80% necrosis. 18F-FLT PET revealed heterogeneity of tumor before and after HILP.
|
|

View larger version (13K):
[in this window]
[in a new window]
|
FIGURE 3. (A) No significant correlation between SUVmax before HILP and percentage of necrosis after HILP (r = 0.622, P = 0.055). (B) Correlation between SUVmean before HILP and percentage of necrosis after HILP (r = 0.642, P < 0.05). These data indicated that tumors with high initial 18F-FLT uptake showed better response to HILP. (C) No significant correlation between decrease in SUVmax and percentage of necrosis after HILP (r = 0.190, P = 0.60). (D) No significant correlation between decrease in SUVmean and percentage of necrosis after HILP (r = 0.404, P = 0.25).
|
|
Copyright © 2007 by the Society of Nuclear Medicine.