World Journal of Nuclear Medicine

ORIGINAL ARTICLE
Year
: 2021  |  Volume : 20  |  Issue : 2  |  Page : 164--171

Should fluorodeoxyglucose positron emission tomography/computed tomography be the first-line imaging investigation for restaging the laryngeal carcinoma patients?


Tarun Kumar Jain1, Guman Singh2, Sumit Goyal2, Ajay Yadav3, Dinesh Yadav4, Nitin Khunteta4, Hemant Malhotra3 
1 Department of Nuclear Medicine, Mahatma Gandhi Medical College and Hospital, Jaipur, Rajasthan, India
2 Department of Radiation Oncology, Mahatma Gandhi Medical College and Hospital, Jaipur, Rajasthan, India
3 Department of Medical Oncology, Mahatma Gandhi Medical College and Hospital, Jaipur, Rajasthan, India
4 Department of Surgical Oncology, Mahatma Gandhi Medical College and Hospital, Jaipur, Rajasthan, India

Correspondence Address:
Dr. Tarun Kumar Jain
Department of Nuclear Medicine, Mahatma Gandhi Medical College and Hospital, Jaipur - 302 022, Rajasthan
India

Posttreatment detection of residual/recurrence disease in the head and neck cancers is not an easy task. Treatment induces changes create difficulties in diagnosis on conventional imaging (computed tomography [CT], magnetic resonance imaging) as well as macroscopic inspection (direct laryngoscopy). Hence, we evaluate the diagnostic performance of contract-enhanced F-18 fluorodeoxyglucose positron emission tomography (FDG PET)/CT in restaging of laryngeal carcinoma Postchemotherapy-surgery and/or radiation therapy. We retrospectively analyzed patients of carcinoma larynx (n = 100) who has completed treatment and were referred for FDG PET/CT. Two reviewers performed image analysis to determine recurrence at primary site and/lymph nodes and distant metastases. Receiver operating characteristic (ROC) was used to determine the maximum standardized uptake value (SUVmax) cut off for disease detection. Histopathological examination and clinical or imaging follow-up were taken as gold standard for recurrence. One hundred laryngeal carcinoma patients with mean age of 57.2 years (range of 40–76) were included in the present study. Among the 100 patients, 96 were male and remaining 4 were female. The average interval between completion of treatment and FDG PET/CT scan was 8.5 months (minimum 6 months). Of the 100 patients, FDG PET/CT detected FDG avid lesions in 66 patients. Sensitivity, specificity, positive predictive value, negative predictive value, and diagnostic accuracy of FDG PET/CT for residual/recurrence disease detection was 90.3%, 73.7%, 84.8%, 82.3%, and 84.0%, respectively (P < 0.05). In addition, in 10 patients, metachronous primaries were detected (lung-4, thyroid-2, tongue, colon, esophagus, and lymphoma-one each). On ROC curve analysis, SUVmax >6.1 had sensitivity and specificity of 80.6% and 94.7% respectively for detection of recurrent/metastatic disease. FDG PET/CT demonstrates high diagnostic accuracy for detection of residual/recurrent disease in treated laryngeal cancer patients and our findings suggest that this imaging modality should be the first-line diagnostic investigation in this cohort of patients.


How to cite this article:
Jain TK, Singh G, Goyal S, Yadav A, Yadav D, Khunteta N, Malhotra H. Should fluorodeoxyglucose positron emission tomography/computed tomography be the first-line imaging investigation for restaging the laryngeal carcinoma patients?.World J Nucl Med 2021;20:164-171


How to cite this URL:
Jain TK, Singh G, Goyal S, Yadav A, Yadav D, Khunteta N, Malhotra H. Should fluorodeoxyglucose positron emission tomography/computed tomography be the first-line imaging investigation for restaging the laryngeal carcinoma patients?. World J Nucl Med [serial online] 2021 [cited 2021 Nov 27 ];20:164-171
Available from: http://www.wjnm.org/article.asp?issn=1450-1147;year=2021;volume=20;issue=2;spage=164;epage=171;aulast=Jain;type=0