scholarly journals 18 F- FDG PET/CT-derived parameters predict clinical stage and prognosis of esophageal cancer.

2019 ◽  
Author(s):  
Styliani Mantziari ◽  
Anastasia Pomoni ◽  
John O Prior ◽  
Michael Winiker ◽  
Pierre Allemann ◽  
...  

Abstract Background Although 18 F- FDG PET/CT is validated in baseline workup of esophageal cancer to detect distant metastases, it remains underused in assessing local staging and biology of the primary tumor. This study aimed to evaluate the association between 18 F- FDG PET/CT-derived parameters of esophageal cancer, and its clinico-pathological features and prognosis.Methods All patients (n=86) with esophageal adenocarcinoma or squamous cell cancer operated between 2005-2014 were analyzed. Linear regression was used to identify clinico-pathologic features of esophageal cancer associated with the tumor’s maximal Standardized Uptake Value (SUV max ), Total Lesion Glycolysis (TLG) and Metabolic Tumor Volume (MTV). ROC curve analysis was performed to precise the optimal cutoff of each variable associated with a locally advanced (cT3/4) status, long-term survival and recurrence. Kaplan Meier curves and Cox regression were used for survival analyses.Results High baseline SUV max was associated with cT3/4 status and middle-third tumor location, TLG with a cT3/4 and cN+ status, whereas MTV only with active smoking. A cT3/4 status was significantly predicted by a SUV max >8.25g/mL (p<0.001), TLG>41.7 (p<0.001) and MTV>10.70 cm 3 (p<0.01) whereas a SUV max > 12.7 g/mL was associated with an early tumor recurrence and a poor disease-free survival (median 13 versus 56 months, p=0.030), particularly in squamous cell cancer.Conclusions Baseline 18 F- FDG PET/CT has a high predictive value of preoperative cT stage, as its parameters SUV max , TLG and MTV can predict a locally advanced tumor with high accuracy. A SUV max > 12.7 g/mL may herald early tumor recurrence and poor disease-free survival.

2019 ◽  
Author(s):  
Styliani Mantziari ◽  
Anastasia Pomoni ◽  
John O Prior ◽  
Michael Winiker ◽  
Pierre Allemann ◽  
...  

Abstract Background Although 18 F- FDG PET/CT is validated in baseline workup of esophageal cancer to detect distant metastases, it remains underused in assessing local staging and biology of the primary tumor. This study aimed to evaluate the association between 18 F- FDG PET/CT-derived parameters of esophageal cancer, and its clinico-pathological features and prognosis.Methods All patients (n=86) with esophageal adenocarcinoma or squamous cell cancer operated between 2005-2014 were analyzed. Linear regression was used to identify clinico-pathologic features of esophageal cancer associated with the tumor’s maximal Standardized Uptake Value (SUV max ), Total Lesion Glycolysis (TLG) and Metabolic Tumor Volume (MTV). ROC curve analysis was performed to precise the optimal cutoff of each variable associated with a locally advanced (cT3/4) status, long-term survival and recurrence. Kaplan Meier curves and Cox regression were used for survival analyses.Results High baseline SUV max was associated with cT3/4 status and middle-third tumor location, TLG with a cT3/4 and cN+ status, whereas MTV only with active smoking. A cT3/4 status was significantly predicted by a SUV max >8.25g/mL (p<0.001), TLG>41.7 (p<0.001) and MTV>10.70 cm 3 (p<0.01) whereas a SUV max > 12.7 g/mL was associated with an early tumor recurrence and a poor disease-free survival (median 13 versus 56 months, p=0.030), particularly in squamous cell cancer.Conclusions Baseline 18 F- FDG PET/CT has a high predictive value of preoperative cT stage, as its parameters SUV max , TLG and MTV can predict a locally advanced tumor with high accuracy. A SUV max > 12.7 g/mL may herald early tumor recurrence and poor disease-free survival.


2019 ◽  
Author(s):  
Styliani Mantziari ◽  
Anastasia Pomoni ◽  
John Prior ◽  
Michael Winiker ◽  
Pierre Allemann ◽  
...  

Abstract Background Although 18FDG PET/CT is validated in baseline workup of esophageal cancer to detect distant metastases, it remains underused in assessing local staging and biology of the primary tumor. This study aimed to evaluate the association between 18FDG PET/CT-derived parameters of esophageal cancer, and its clinico-pathological features and prognosis. Methods All patients with esophageal adenocarcinoma or squamous cell cancer of operated between 2005-2014 were analyzed. Linear regression was used to identify clinico-pathologic features of esophageal cancer associated with the tumor’s maximal Standardized Uptake Value (SUVmax), Total Lesion Glycolysis (TLG) and Metabolic Tumor Volume (MTV). ROC curve analysis was performed to precise the optimal cutoff of each variable associated with a locally advanced (cT3/4) status, long-term survival and recurrence. Kaplan Meier curves and Cox regression were used for survival analyses. Results High baseline SUVmax was associated with cT3/4 status and middle-third tumor location, TLG with a cT3/4 and cN+ status, whereas MTV only with active smoking. A cT3/4 status was significantly predicted by a SUVmax >8.25g/mL (p<0.001), TLG>41.7 (p<0.001) and MTV>10.70 cm3 (p<0.01) whereas a SUVmax > 12.7 g/mL was associated with an early tumor recurrence and a poor disease-free survival (median 13 versus 56 months, p=0.030), particularly in squamous cell cancer. Conclusions Baseline 18FDG PET/CT has a high predictive value of preoperative cT stage, as its parameters SUVmax, TLG and MTV can predict a locally advanced tumor with high accuracy. A SUVmax > 12.7 g/mL may herald early tumor recurrence and poor disease-free survival.


2016 ◽  
Vol 50 (4) ◽  
pp. 360-369 ◽  
Author(s):  
Kursat Okuyucu ◽  
Sukru Ozaydın ◽  
Engin Alagoz ◽  
Gokhan Ozgur ◽  
Semra Ince ◽  
...  

Abstract Background Non-Hodgkin’s lymphomas arising from the tissues other than primary lymphatic organs are named primary extranodal lymphoma. Most of the studies evaluated metabolic tumor parameters in different organs and histopathologic variants of this disease generally for treatment response. We aimed to evaluate the prognostic value of metabolic tumor parameters derived from initial FDG-PET/CT in patients with a medley of primary extranodal lymphoma in this study. Patients and methods There were 67 patients with primary extranodal lymphoma for whom FDG-PET/CT was requested for primary staging. Quantitative PET/CT parameters: maximum standardized uptake value (SUVmax), average standardized uptake value (SUVmean), metabolic tumor volume (MTV) and total lesion glycolysis (TLG) were used to estimate disease-free survival and overall survival. Results SUVmean, MTV and TLG were found statistically significant after multivariate analysis. SUVmean remained significant after ROC curve analysis. Sensitivity and specificity were calculated as 88% and 64%, respectively, when the cut-off value of SUVmean was chosen as 5.15. After the investigation of primary presentation sites and histo-pathological variants according to recurrence, there is no difference amongst the variants. Primary site of extranodal lymphomas however, is statistically important (p = 0.014). Testis and central nervous system lymphomas have higher recurrence rate (62.5%, 73%, respectively). Conclusions High SUVmean, MTV and TLG values obtained from primary staging FDG-PET/CT are potential risk factors for both disease-free survival and overall survival in primary extranodal lymphoma. SUVmean is the most significant one amongst them for estimating recurrence/metastasis.


2014 ◽  
Vol 56 (12) ◽  
pp. 1463-1470 ◽  
Author(s):  
Ji Eun Jo ◽  
Jin You Kim ◽  
Suck Hong Lee ◽  
Suk Kim ◽  
Taewoo Kang

2015 ◽  
Vol 1 (2) ◽  
Author(s):  
Saima Riaz ◽  
Humayun Bashir ◽  
Nargis Muzzafar ◽  
Ahmed Murtaza ◽  
Amin Hayee

Purpose: The purpose of this study was to review the impact of 18F- fluorodeoxyglucose positron emission tomography-computed tomography (FDG-PET-CT) scans on the management of patients with germ cell tumours (GCT) at our centre. Methods: A descriptive, cross-sectional, retrospective review of a total of 29 FDG PET-CT scans acquired in 20 patients with GCT between December 2009 and May 2013. Results: Sixteen males and four females with the average age of 34.4 years (+18SD) were identi ed who underwent FDG PET-CT scans for treatment response/outcome evaluation on an average period of 3 months after completion of therapy. Hypermetabolic residual disease (PET-CT positive) was identi ed in 8 (40%). 6 (30%) had non-FDG-avid residual morphologic disease (PET negative and CT positive) and 6 (30%) were disease free (PET-CT negative). FDG PET-CT led to change in the management plan of 12 (60%) of cases as compared to the CT alone ndings. Follow-up was available for a median of 2.9 years (±1.5 SD). The overall 5-year disease-free survival was found to be PET-CT positive patients = 62%, PET-negative and CT-positive patients = 80% and PET-CT-negative patients = 100%. Conclusion: FDG PET-CT scanning has a potential role in the evaluation of response to treatment and can predict the survival outcome. Key words: 18F- uorodeoxyglucose positron emission tomography computed tomography, disease-free survival, germ cell tumour, standardised uptake value 


Diagnostics ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 714
Author(s):  
Ewa Burchardt ◽  
Wojciech Burchardt ◽  
Paulina Cegła ◽  
Anna Kubiak ◽  
Andrzej Roszak ◽  
...  

Purpose: This study aims to determine whether semiquantitative parameters obtained from both the primary tumor and metastatic pelvic lymph nodes (PLN) diagnosed in fluoro-18-deoxy-glucose positron emission tomography (FDG-PET-CT) are associated with disease-free survival (DFS), local control (LC), distant metastasis-free survival (DMFS) and overall survival (OS) in patients with locally advanced squamous cervical cancer (LACC) and metastatic pelvic lymph nodes. Materials: Retrospective analysis was performed on 93 female patients with FIGO IIIC1. The median age was 53 years (27–75). The PET parameters both in the primary tumor and metastatic pelvic lymph nodes, including SUVmax, SUVmean, TLG, MTV, heterogeneity, along with clinical variables, before radical cisplatin-based radiochemotherapy (RCT) were analyzed. The p-values < 0.05 were considered statistically significant. Results: Median follow-up was 38 months (4.5–92.6). Three years and five years OS were 75% and 70% respectively. Patients with SUVmax above 12.6, SUVmean above 7.6 and with TLG in tumors >245.7 lived longer (p < 0.05). The higher SUVmax or SUVmean reduced increased DMFS (HR 0.3 95%CI 0.56–0.96 and 0.59 95%CI 0.37–0.93). The clinical factors and other FDG PET CT parameters were not found to be statistically relevant in terms of OS, DFS, DM and LC. Conclusions: This study is the first report showing that in LACC patient population with PLN involvement treated with definitive RCT, high SUVmean, SUVmax and TLG of the primary tumor in FDG-PET-CT were linked with longer OS. Lower SUVmean and SUVmax were linked with shorter DMFS. None of the clinical factors and the nodal FDG-PET-CT parameters influenced the outcome.


2021 ◽  
Author(s):  
Riccardo Caruso ◽  
Emilio Vicente ◽  
Yolanda Quijano ◽  
Hipolito Duran ◽  
Isabel Fabra ◽  
...  

Abstract Objectives: Neoadjuvant radiochemotherapy (nCRT) is universally considered to be a valid treatment to achieve downstaging, improve local disease control and obtain better resectability in locally advanced rectal cancer (LARC). The aim of this study is to correlate the change in tumor 18F -FDG PET-CT standardized uptake value (SUV) before and after nCRT, in order to obtain an early prediction of pathologic response (pR) achieved in patients with LARC.Data description: We performed a retrospective analysis of patients with LARC diagnosis who underwent curative resection. All patients received nCRT and surgical treatment was carried after 8/12th. All patients underwent a baseline 18F -FDG PET-CT scan within the week prior to the initiation of the treatment (PET-CT SUV1) and a second scan (PET-C T SUV2) within six weeks of the completion of nCRT. Furthermore, we evaluated the prognostic value of 18F -FDG PET-CT in terms of disease free survival (DFS) and overall survival (OS) in patients with LARC.A total of 133 patients with LARC were included in the study. Patients were divided in two groups according to the TRG (tumor regression grade): 107 (80%) as Responders group (TRG0-TRG1) and 26 (25%) as the No-Responders group (TRG2-TRG3). We obtained a significant difference in Δ%SUV between the two different groups responders vs no responders (p<0.012).The results of this analysis have shown that 18F-FDG PET-CT may be an indicator in order to evaluate the pR to nCRT in patients with LARC. The decrease in 18F-FDG PET-CT uptake in the primary tumor may offer primary information in order to early identify those patients more likely to obtain a pCR to nCRT and predict those unlikely to regress significantly.


2011 ◽  
Vol 29 (4_suppl) ◽  
pp. 505-505
Author(s):  
S. Shanmugan ◽  
R. Arrangoiz ◽  
J. R. Nitzkorski ◽  
J. Q. Yu ◽  
T. Li ◽  
...  

505 Background: Pathologic complete response (pCR) after neoadjuvant chemoradiation has been observed in 15% to 30% of patients with locally advanced rectal cancer. The utility of FDG PET/CT scans in the management of patients with stage II or III rectal cancer is not well defined. The objective of this study is to determine if FDG PET/CT can be used to predict pCR and disease-free survival in patients receiving neoadjuvant chemoradiation with locally advanced rectal cancer. Methods: A retrospective chart review was conducted in patients with endorectal ultrasound-staged T3 to T4 rectal tumors who underwent preoperative and postoperative FGD PET/CT imaging. All patients were treated with neoadjuvant chemoradiotherapy (CRT). Maximum standardized uptake value (SUV) of each tumor was recorded. Logistic regression was used to analyze the association of pre-CRT SUV, post-CRT SUV, % SUV change, and time between therapy and surgery in comparison to pathological complete response. Kaplan-Meier estimation was used to look for significant predictors of survival. Results: Seventy patients (mean age 62; 42M:28F) with preoperative stage T3Nx (n = 60) and T4Nx (n = 10) underwent pre-CRT and post-CRT FDG PET/CT scans between November 2002 and March 2009. All patients underwent definitive surgery after therapy with standard pathologic evaluation.The pCR rate was 26%. Median pre-CRT SUV was 10.5 while the median post-CRT SUV was 4.05. Patients with pCR had a lower mean post-CRT SUV compared to those without pCR (2.7 vs. 4.5, p = 0.02). Median SUV decrease was 61% (range 6% to 95%) and was significant in predicting pCR (p = 0.004). Patients with a pCR had a greater time interval between neoadjuvant therapy and surgery (median 57 days vs. 50 days) than those without (p = 0.05). Furthermore, patients with post-CRT SUV < 4 had a lower local recurrence rate compared to those with post-CRT SUV > 4 (p = 0.03). Patients with SUV decrease > 61% had improved overall survival at mean follow-up of 39 months than those without (p = 0.01). Conclusions: PET/CT can predict response to neoadjuvant chemoradiation in patients with locally advanced rectal cancer. Pre-CRT SUV was the only predictor of disease-free survival. No significant financial relationships to disclose.


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