O26. A review on target volume delineation using FDG-PET/CT images for radiation oncology

2016 ◽  
Vol 32 ◽  
pp. 149
Author(s):  
M. du Toit ◽  
A. Potgieter ◽  
M. Heunis ◽  
R. Boellaard ◽  
J. Pruim
Keyword(s):  
Radiation Oncology ◽  
Fdg Pet ◽  
Target Volume ◽  
Ct Images ◽  
Target Volume Delineation ◽  
Volume Delineation ◽  
Pet Ct ◽  
Fdg Pet Ct

FDG-PET/CT Imaging for Staging and Target Volume Delineation in Preoperative Conformal Radiotherapy of Rectal Cancer

2008 ◽  
Vol 70 (5) ◽  
pp. 1423-1426 ◽  
Author(s):  
Maria Chiara Bassi ◽  
Lucia Turri ◽  
Gianmauro Sacchetti ◽  
Gianfranco Loi ◽  
Barbara Cannillo ◽  
...  
Keyword(s):  
Rectal Cancer ◽  
Fdg Pet ◽  
Conformal Radiotherapy ◽  
Target Volume ◽  
Ct Imaging ◽  
Target Volume Delineation ◽  
Volume Delineation ◽  
Pet Ct ◽  
Fdg Pet Ct

FDG-PET/CT imaging for staging and definition of tumor volumes in radiation treatment planning in non-small cell lung cancer

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 7574-7574 ◽  
Author(s):  
Y. Xu ◽  
S. Ma ◽  
D. Yu ◽  
J. Wang ◽  
L. Zhang ◽  
...  
Keyword(s):  
Treatment Planning ◽  
Fdg Pet ◽  
Radiation Treatment ◽  
Target Volume ◽  
Ct Images ◽  
Planning System ◽  
Treatment Planning System ◽  
Volume Delineation ◽  
Pet Ct ◽  
Fdg Pet Ct

7574 Background: 18F-fluorodeoxyglucose (FDG)-positron emission tomography (PET) /computed tomography (CT) has a potential improvement for staging and radiation treatment (RT) planning of various tumor sites. But from a clinical standpoint, the open questions are essentially the following: to what extent does PET/CT change the target volume? Can PET/CT reduce inter-observer variability in target volume delineation? We analyzed the use of FDG-PET/ CT images for staging and evaluated the impact of FDG- PET/CT on the radiotherapy volume delineation compared with CT in patients with non-small cell lung cancer (NSCLC) candidates for radiotherapy. Intraobserver variation in delineating tumor volumes was also observed. Methods: Twenty-three patients with stage I-III NSCLC were enrolled in this pilot study and were treated with fractionated RT based therapy with or without chemotherapy. FDG-PET/CT scans were acquired within 2 weeks prior to RT. PET and CT data sets were sent to the treatment planning system Pinnacle through compact disc. The CT and PET images were subsequently fused by means of a dedicated radiation treatment planning system. Gross Tumor Volume (GTV) was contoured by four radiation oncologists respectively on CT (CT-GTV) and PET/CT images (PET/CT-GTV). The resulting volumes were analyzed and compared. Results: For the first phase, two radiation oncologists outlined together the contours achieving a final consensus. Based on PET/CT, changes in TNM categories occurred in 8/23 cases (35%). Radiation targeting with fused FDG-PET and CT images resulted in alterations in radiation therapy planning in 12/20 patients (60%) by comparison with CT targeting. The most prominent changes in GTV have been observed in cases with atelectasis. For the second phase was four intraobserver variation in delineating tumor volumes. The mean ratio of largest to smallest CT-based GTV was 2.31 (range 1.01–5.96). The addition of the PET data reduced the mean ratio to 1.46 (range 1.12–2.27). Conclusions: PET/CT fusion images could have a potential impact on both tumor staging and treatment planning. Implementing matched PET/CT reduced observer variation in delineating tumor volumes significantly with respect to CT only. [Table: see text]

Respiratory gated [18F]FDG PET/CT for target volume delineation in stereotactic radiation treatment of liver metastases

2012 ◽  
Vol 188 (7) ◽  
pp. 592-598 ◽  
Author(s):  
R.A. Bundschuh ◽  
N. Andratschke ◽  
J. Dinges ◽  
M.N. Duma ◽  
S.T. Astner ◽  
...  
Keyword(s):  
Liver Metastases ◽  
Fdg Pet ◽  
Radiation Treatment ◽  
Target Volume ◽  
Target Volume Delineation ◽  
Stereotactic Radiation ◽  
Volume Delineation ◽  
Pet Ct ◽  
18F Fdg ◽  
Fdg Pet Ct

926 poster AN ADAPTIVE THRESHOLD ALGORITHM FOR FDG-PET/CT TARGET VOLUME DELINEATION: VALIDATION IN LYMPHNODES.

2011 ◽  
Vol 99 ◽  
pp. S355
Author(s):  
L. Vigna ◽  
L. Deantonio ◽  
R. Matheoud ◽  
G. Sacchetti ◽  
G. Loi ◽  
...  
Keyword(s):  
Fdg Pet ◽  
Target Volume ◽  
Adaptive Threshold ◽  
Target Volume Delineation ◽  
Threshold Algorithm ◽  
Volume Delineation ◽  
Pet Ct ◽  
Fdg Pet Ct

scholarly journals Impact of 18F-FDG PET/CT on target volume delineation in recurrent or residual gynaecologic carcinoma

2012 ◽  
Vol 7 (1) ◽  
Author(s):  
Hansjörg Vees ◽  
Nathalie Casanova ◽  
Thomas Zilli ◽  
Hestia Imperiano ◽  
Osman Ratib ◽  
...  
Keyword(s):  
Fdg Pet ◽  
Target Volume ◽  
Target Volume Delineation ◽  
Volume Delineation ◽  
Pet Ct ◽  
18F Fdg ◽  
Fdg Pet Ct

1163 poster FDG-PET/CT FOR TARGET VOLUME DELINEATION IN THE VOLUMETRIC MODULATED ARC RADIOTHERAPY IN CERVICAL CANCER

2011 ◽  
Vol 99 ◽  
pp. S432-S433
Author(s):  
R. Lazzari ◽  
A. Cecconi ◽  
V. Dell'Acqua ◽  
A. Vavassori ◽  
L.L. Travaini ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Fdg Pet ◽  
Target Volume ◽  
Target Volume Delineation ◽  
Volume Delineation ◽  
Pet Ct ◽  
Fdg Pet Ct ◽  
Volumetric Modulated Arc Radiotherapy

scholarly journals FDG-PET/CT and MR imaging for target volume delineation in rectal cancer radiotherapy treatment planning: a systematic review

2021 ◽  
pp. 1-11
Author(s):  
Elizabeth E. Olanloye ◽  
Aarthi Ramlaul ◽  
Atara I. Ntekim ◽  
Segun S. Adeyemi
Keyword(s):  
Magnetic Resonance Imaging ◽  
Rectal Cancer ◽  
Magnetic Resonance ◽  
Fdg Pet ◽  
Target Volume ◽  
Resonance Imaging ◽  
Target Volume Delineation ◽  
Volume Delineation ◽  
Pet Ct ◽  
Fdg Pet Ct

Abstract Aim: The aim of this systematic review was to synthesise and summarise evidence surrounding the clinical use of fluoro-2-deoxy-d-glucose positron emission tomography/computed tomography (FDG-PET/CT) and magnetic resonance imaging (MRI) for target volume delineation (TVD) in rectal cancer radiotherapy planning. Methods: PubMed, EMBASE, Cochrane library, CINAHL, Web of Science and Scopus databases and other sources were systematically queried using keywords and relevant synonyms. Eligible full-text studies were assessed for methodological quality using the QUADAS-2 tool. Results: Eight of the 1448 studies identified met the inclusion criteria. Findings showed that MRI significantly delineate larger tumour volumes (TVs) than FDG-PET/CT while diffusion-weighted magnetic resonance imaging (DW-MRI) defined smaller gross tumour volumes (GTVs) compared to T2 weighted-Magnetic Resonance Image. CT-based GTVs were found to be larger compared to FDG-PET/CT. FDG-PET/CT also identified new lesions in 15–17% patients and TVs extending outside the routinely used clinical standard CT TV in 29–83% patients. Between observers, delineated volumes were similar and consistent between MRI sequences, whereas interobserver agreement was significantly improved with FDG-PET/CT than CT. Conclusion: FDG-PET/CT and DW-MRI appear to delineate smaller rectal TVs and show improved interobserver variability. Overall, this study provides valuable insights into the amount of attention in the research literature that has been paid to imaging for TVD in rectal cancer.

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