Volume 109, Issue 3 pp. 218-224
Research Article

Ability of FDG-PET/CT in the detection of gallbladder cancer

Carlos Ramos-Font MD, PhD

Corresponding Author

Carlos Ramos-Font MD, PhD

Nuclear Medicine Department, UGC Diagnóstico por la Imagen, Juan Ramón Jiménez Hospital, Huelva, Spain

Correspondence to: Carlos Ramos Font, MD, PhD, Nuclear Medicine Department, UGC Diagnóstico por la Imagen, Juan Ramón Jiménez Hospital, Ronda norte s/n 21005, Huelva, Spain.

E-mail: [email protected]

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Manuel Gómez-Rio MD, PhD

Manuel Gómez-Rio MD, PhD

Nuclear Medicine Department, Virgen de las Nieves Hospital, Granada, Spain

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Antonio Rodríguez-Fernández MD, PhD

Antonio Rodríguez-Fernández MD, PhD

Nuclear Medicine Department, Virgen de las Nieves Hospital, Granada, Spain

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Amelia Jiménez-Heffernan MD, PhD, FEBNM, FASNC

Amelia Jiménez-Heffernan MD, PhD, FEBNM, FASNC

Nuclear Medicine Department, UGC Diagnóstico por la Imagen, Juan Ramón Jiménez Hospital, Huelva, Spain

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Rocío Sánchez Sánchez MD, PhD

Rocío Sánchez Sánchez MD, PhD

Nuclear Medicine Department, Virgen de las Nieves Hospital, Granada, Spain

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Jose Manuel Llamas-Elvira MD, PhD

Jose Manuel Llamas-Elvira MD, PhD

Nuclear Medicine Department, Virgen de las Nieves Hospital, Granada, Spain

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First published: 25 October 2013
Citations: 54
Conflict of interest: none to declare.

Abstract

Purpose

To assess the value of FDG-PET/CT in the evaluation of gallbladder carcinomas (GBC).

Methods

A prospective cohort of patients with suspicion of or confirmed GBC was studied with FDG-PET/CT. Diagnostic accuracy parameters were calculated in comparison with pathology and/or the clinical course of patients. Clinical impact of PET/CT imaging was estimated.

Results

Forty-nine patients were enrolled (34 malignant tumors, 15 benign lesions; 37 staging, 12 restaging). Overall diagnostic accuracy was 95.9% for the diagnosis of the primary lesion, 85.7% for lymph node involvement and 95.9% for metastatic disease. Mean SUVmax in malignant gallbladder lesions was 7.92 ± 6.25 Analysis of ROC curves showed a SUVmax cut-off value of 3.62 for malignancy (S: 78.1%; Sp: 88.2%). Diagnostic accuracy in the restaging group reached 100%. FDG-PET/CT changed the management of 22.4% of the population.

Comments

Diagnosis of malignancy or benignity of suspicious gallbladder lesions is accurately made with FDG PET/CT, allowing a precise staging of GBC due to its ability to identify unsuspected metastatic disease. SUVmax has a complementary role in addition to visual analysis. J. Surg. Oncol. 2014 109:218–224. © 2013 Wiley Periodicals, Inc.

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