scholarly journals Positron emission tomography and stage migration for head and neck cancer.

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 6018-6018
Author(s):  
Noam Avraham VanderWalde ◽  
Ramzi George Salloum ◽  
Tsai-Ling Liu ◽  
Mark Christopher Hornbrook ◽  
Maureen Cecelia O'Keeffe-Rosetti ◽  
...  

6018 Background: Positron emission tomography (PET) is often used for the staging of head and neck cancer (HNC). The purpose of this study is to explore the association between the increased utilization of PET and stage/survival in the managed care environment. Methods: Adult patients diagnosed with HNC (n=958) between 2000-2008, at 4 integrated health systems (Group Health Cooperative, Seattle; Health Alliance Plan/Henry Ford Health System, Detroit; Kaiser Permanente Colorado and Northwest, Portland) were identified via tumor registries linked to claims data. We compared AJCC stage distribution, patient/treatment characteristics, and survival between pre-PET era (2000-2004) vs. PET era (2005-2008), and those with PET vs. those without, during the PET era. AJCC stage was grouped into stage I/II (localized), stage III/IVa/IVb (locally advanced), and stage IVc (metastatic). Ordered logistic regression estimated the effects of PET utilization on upstaging. Kaplan-Meier estimates described overall survival (OS) differences between PET users and nonusers in the PET era. Cox proportional hazards regression evaluated the effect of PET use on survival. Results: There was a non-significant increase in stage III/IVa/IVb (40% to 44%) with a decrease in stage I/II (58% to 52%) between pre-PET era and PET era (p=0.11). During the PET era, patients with PET were more likely stage III/IVa/IVb and less likely stage I/II compared to patients without PET (III/IVa/IVb: 62% vs. 29%, I/II: 35% vs. 68%). On multivariate analysis those who were staged with PET were twice as likely to have locally advanced disease (OR 2.091; p=0.006). There was no difference in stage IVc. Patients with PET scans were more likely to receive chemotherapy with radiation and less likely to receive no treatment. 3-year actuarial OS for patients (all stages) with and without PET was 81% vs. 77% (p=0.261). 3-year actuarial OS for patients staged III/IVa/IVb with and without PET was 58% vs. 41% (p= 0.001). Conclusions: HNC patients were more likely to be upstaged with the use of PET. There was an improvement in survival in stage III/IVa/IVb patients, but no difference in survival across all stages. This likely reflects selection bias and stage migration rather than improved outcomes among individual patients.

Head & Neck ◽  
2001 ◽  
Vol 23 (12) ◽  
pp. 1056-1060 ◽  
Author(s):  
Theodoros N. Teknos ◽  
Eben L. Rosenthal ◽  
David Lee ◽  
Rodney Taylor ◽  
Charles S. Marn

2014 ◽  
Vol 140 (7) ◽  
pp. 654 ◽  
Author(s):  
Noam A. VanderWalde ◽  
Ramzi G. Salloum ◽  
Tsai-Ling Liu ◽  
Mark C. Hornbrook ◽  
Maureen C. O’Keeffe Rosetti ◽  
...  

2007 ◽  
Vol 82 ◽  
pp. S5-S6
Author(s):  
W. Oyen ◽  
D. Schinagl ◽  
W. Vogel ◽  
B. Wensing ◽  
E. Troost ◽  
...  

2009 ◽  
Vol 27 (4) ◽  
pp. 535-541 ◽  
Author(s):  
Jörg Schwarz-Dose ◽  
Michael Untch ◽  
Reinhold Tiling ◽  
Stefanie Sassen ◽  
Sven Mahner ◽  
...  

Purpose To evaluate positron emission tomography (PET) using [18F]fluorodeoxyglucose (FDG) for prediction of histopathologic response early during primary systemic therapy of large or locally advanced breast cancer. Patients and Methods In a prospective multicenter trial, 272 FDG-PET scans were performed in 104 patients at baseline (n = 104) and after the first (n = 87) and second cycle (n = 81) of chemotherapy. The level and relative changes in standardized uptake value (SUV) of FDG uptake were assessed regarding their ability to predict histopathologic response. All patients underwent surgery after chemotherapy, and histopathologic response defined as minimal residual disease or gross residual disease served as the reference standard. Results Seventeen (16%) of 104 patients were histopathologic responders and 87 were (84%) nonresponders. All patients for whom baseline SUV was less than 3.0 (n = 24) did not achieve a histopathologic response. SUV decreased by 51% ± 18% after the first cycle of chemotherapy in histopathologic responders (n = 15), compared with 37% ± 21% in nonresponders (n = 54; P = .01). A threshold of 45% decrease in SUV correctly identified 11 of 15 responders, and histopathologic nonresponders were identified with a negative predictive value of 90%. Similar results were found after the second cycle when using a threshold of 55% relative decrease in SUV. Conclusion FDG-PET allows for prediction of treatment response by the level of FDG uptake in terms of SUV at baseline and after each cycle of chemotherapy. Moreover, relative changes in SUV after the first and second cycle are a strong predictor of response. Thus, FDG-PET may be helpful for individual treatment stratification in breast cancer patients.


2018 ◽  
Vol 36 (20) ◽  
pp. 2024-2034 ◽  
Author(s):  
Ulrich Dührsen ◽  
Stefan Müller ◽  
Bernd Hertenstein ◽  
Henrike Thomssen ◽  
Jörg Kotzerke ◽  
...  

Purpose Interim positron emission tomography (PET) using the tracer, [18F]fluorodeoxyglucose, may predict outcomes in patients with aggressive non-Hodgkin lymphomas. We assessed whether PET can guide therapy in patients who are treated with cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP). Patients and Methods Newly diagnosed patients received two cycles of CHOP—plus rituximab (R-CHOP) in CD20-positive lymphomas—followed by a PET scan that was evaluated using the ΔSUVmax method. PET-positive patients were randomly assigned to receive six additional cycles of R-CHOP or six blocks of an intensive Burkitt’s lymphoma protocol. PET-negative patients with CD20-positive lymphomas were randomly assigned or allocated to receive four additional cycles of R-CHOP or the same treatment with two additional doses rituximab. The primary end point was event-free survival time as assessed by log-rank test. Results Interim PET was positive in 108 (12.5%) and negative in 754 (87.5%) of 862 patients treated, with statistically significant differences in event-free survival and overall survival. Among PET-positive patients, 52 were randomly assigned to R-CHOP and 56 to the Burkitt protocol, with 2-year event-free survival rates of 42.0% (95% CI, 28.2% to 55.2%) and 31.6% (95% CI, 19.3% to 44.6%), respectively (hazard ratio, 1.501 [95% CI, 0.896 to 2.514]; P = .1229). The Burkitt protocol produced significantly more toxicity. Of 754 PET-negative patients, 255 underwent random assignment (129 to R-CHOP and 126 to R-CHOP with additional rituximab). Event-free survival rates were 76.4% (95% CI, 68.0% to 82.8%) and 73.5% (95% CI, 64.8% to 80.4%), respectively (hazard ratio, 1.048 [95% CI, 0.684 to 1.606]; P = .8305). Outcome prediction by PET was independent of the International Prognostic Index. Results in diffuse large B-cell lymphoma were similar to those in the total group. Conclusion Interim PET predicted survival in patients with aggressive lymphomas treated with R-CHOP. PET-based treatment intensification did not improve outcome.


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