Ludovico M Garau1,2, Gianpiero Manca3, Stefano Bola4,3, Giacomo Aringhieri3, Lorenzo Faggioni5, Duccio Volterrani3. 1. Department of Radiology, Nuclear Medicine Unit, University Hospital of Parma, Parma, Italy. ludovico.garau@gmail.com. 2. Regional Center of Nuclear Medicine, University Hospital of Pisa, Pisa, Italy. ludovico.garau@gmail.com. 3. Regional Center of Nuclear Medicine, University Hospital of Pisa, Pisa, Italy. 4. Department of Radiology, Nuclear Medicine Unit, University Hospital of Parma, Parma, Italy. 5. Diagnostic and Interventional Radiology, University Hospital of Pisa, Pisa, Italy.
Abstract
OBJECTIVES: The relationship between glucose metabolism and tumor cellularity before chemo-radiotherapy in patients with head and neck squamous cell carcinoma (SCC) has never been compared with that of patients evaluated after treatment. This retrospective study analyzed the correlation between glucose metabolism parameters expressed by standardized uptake value (SUV) derived from 18F-fluorodeoxyglucose (18F-FDG) PET/CT and cellularity tumor parameters expressed by apparent diffusion coefficients (ADC) derived from diffusion-weighted (DW) MRI in untreated and treated patients with head and neck SCC. METHODS: In 19 patients with no previous exposure to any treatment and 17 different chemo-radiotreated patients with head and neck SCC, we correlated the semi-quantitative uptake values (SUVmax, SUVpeak, and SUVmean) with the ADC functional parameters (ADCmin, ADCmean) including the standard deviation of ADC values (ADCsd). RESULTS: No significant correlation was found between glucose metabolism parameters and ADCmin or ADCmean in untreated and treated patient groups. However, in untreated patients, significant inverse correlations were found between ADCsd and SUVmax (P = 0.039, r = -0.476), SUVpeak (P = 0.003, r = -0.652) and SUVmean (P = 0.039, r = -0.477). Analyses after chemo-radiotherapy in 17 patients showed no significant correlation between glucose metabolism parameters and DW MRI values, excluding a persistent significant (but lower intensity) inverse correlation between SUVpeak and ADCsd (P = 0.033, r = -0.519). CONCLUSIONS: The demonstrated relationships suggest complex interactions especially between metabolic activity and heterogeneity of tumoral tissue, which might play a complementary role in the assessment of head and neck SCC. TRIAL DATE OF REGISTRATION AND REGISTRATION NUMBER: Our retrospective study was registered on April 9th, 2020 by the Ethics Committee of the Coordinating Center "Area Vasta Nord Ovest" (CEAVNO) with Registration Number CEAVNO09042020.
OBJECTIVES: The relationship between glucose metabolism and tumor cellularity before chemo-radiotherapy in patients with head and neck squamous cell carcinoma (SCC) has never been compared with that of patients evaluated after treatment. This retrospective study analyzed the correlation between glucose metabolism parameters expressed by standardized uptake value (SUV) derived from 18F-fluorodeoxyglucose (18F-FDG) PET/CT and cellularity tumor parameters expressed by apparent diffusion coefficients (ADC) derived from diffusion-weighted (DW) MRI in untreated and treated patients with head and neck SCC. METHODS: In 19 patients with no previous exposure to any treatment and 17 different chemo-radiotreated patients with head and neck SCC, we correlated the semi-quantitative uptake values (SUVmax, SUVpeak, and SUVmean) with the ADC functional parameters (ADCmin, ADCmean) including the standard deviation of ADC values (ADCsd). RESULTS: No significant correlation was found between glucose metabolism parameters and ADCmin or ADCmean in untreated and treated patient groups. However, in untreated patients, significant inverse correlations were found between ADCsd and SUVmax (P = 0.039, r = -0.476), SUVpeak (P = 0.003, r = -0.652) and SUVmean (P = 0.039, r = -0.477). Analyses after chemo-radiotherapy in 17 patients showed no significant correlation between glucose metabolism parameters and DW MRI values, excluding a persistent significant (but lower intensity) inverse correlation between SUVpeak and ADCsd (P = 0.033, r = -0.519). CONCLUSIONS: The demonstrated relationships suggest complex interactions especially between metabolic activity and heterogeneity of tumoral tissue, which might play a complementary role in the assessment of head and neck SCC. TRIAL DATE OF REGISTRATION AND REGISTRATION NUMBER: Our retrospective study was registered on April 9th, 2020 by the Ethics Committee of the Coordinating Center "Area Vasta Nord Ovest" (CEAVNO) with Registration Number CEAVNO09042020.
Keywords:
Apparent diffusion coefficient; Diffusion-weighted magnetic resonance imaging; Head and neck squamous cell carcinoma; Positron emission tomography and computed tomography
Authors: Jon Cacicedo; Arturo Navarro; Olga Del Hoyo; Alfonso Gomez-Iturriaga; Filippo Alongi; Jose A Medina; Olgun Elicin; Andrea Skanjeti; Francesco Giammarile; Pedro Bilbao; Francisco Casquero; Berardino de Bari; Alan Dal Pra Journal: Br J Radiol Date: 2016-08-02 Impact factor: 3.039
Authors: Seung Hong Choi; Jin Chul Paeng; Chul-Ho Sohn; Jefferson R Pagsisihan; Young-Jae Kim; Kwang Gi Kim; Ji Yeon Jang; Tae Jin Yun; Ji-Hoon Kim; Moon Hee Han; Kee-Hyun Chang Journal: J Nucl Med Date: 2011-06-16 Impact factor: 10.057
Authors: Leonard Leifels; Sandra Purz; Patrick Stumpp; Stefan Schob; Hans Jonas Meyer; Thomas Kahn; Osama Sabri; Alexey Surov Journal: Contrast Media Mol Imaging Date: 2017-10-19 Impact factor: 3.161