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Inicio Revista Española de Medicina Nuclear e Imagen Molecular (English Edition) Prognostic value of metabolic tumor volume and total lesion glycolysis in 18F-FD...
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Vol. 35. Issue 6.
Pages 365-372 (November - December 2016)
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Vol. 35. Issue 6.
Pages 365-372 (November - December 2016)
Original Article
Prognostic value of metabolic tumor volume and total lesion glycolysis in 18F-FDG PET/CT scans in locally advanced breast cancer staging
Papel pronóstico del volumen metabólico tumoral y de la glucólisis tumoral total en los estudios 18F-FDG PET/TC de estadificación del cáncer localmente avanzado de mama
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A. Jiménez-Ballvéa,
Corresponding author
anajimenezb@hotmail.com

Corresponding author.
, M. García García-Esquinasa, O. Salsidua-Arroyoa, A. Serrano-Palacioa, J.A. García-Sáenzb, A. Ortega Candila, M.E. Fuentes Ferrerc, C. Rodríguez Reya, J.M. Román-Santamaríad, F. Morenob, J.L. Carreras-Delgadoa
a Servicio de Medicina Nuclear, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria Hospital Clínico San Carlos, Madrid, Spain
b Servicio de Oncología Médica, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria Hospital Clínico San Carlos, Madrid, Spain
c Unidad de Gestión Clínica de Medicina Preventiva, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria Hospital Clínico San Carlos, Madrid, Spain
d Servicio de Ginecología y Obstetricia, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria Hospital Clínico San Carlos, Madrid, Spain
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Tables (4)
Table 1. Clinical–pathological characteristics of the patients.
Table 2. Comparison of PET indexes according to recurrence and histological response after neoadjuvant treatment.
Table 3. Cox regression of clinical–pathological factors and PET indexes associated with recurrence.
Table 4. Results obtained on ROC analysis.
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Abstract
Objective

To determine whether metabolic tumor volume (MTV) and total lesion glycolysis (TLG) are able to predict recurrence risk in locally advanced breast cancer (LABC) patients.

Material and methods

Retrospective study of LABC patients who undertook neoadjuvant, local and adjuvant treatment and follow up. A 18F-FDG PET/CT study for initial staging was performed analysing in this study different metabolic parameters (MTV, TLG, SUVmax and SUVmed) both in the primary tumor (T) as well as in axillary nodes (N) and whole-body (WB).

Results

Forty females were included between January 2010 and 2011; follow up until January 2015 was completed. The average follow-up was 46 months. Twenty percent presented recurrence: local disease (n=2) and distant metastasis (n=6); 3 patients died (38% of the patients which recurred and 7.5% from the total). SUVmax, MTV and TLG, in T, N and WB, were higher in those patients with recurrence. The MTV and TLG parameters in the tumor (T) were related to the recurrence rate (p=.020 and p=.028, respectively); whereas SUVmax in the lymph nodes (N) was significantly related (p=.008) to the recurrence rate. The best cut-off points to predict recurrence where: MTV T19.3cm3, TLG T74.4g and SUVmax N13.8, being 10–12 times more likely to recidivate when these thresholds where exceeded. Tumor grade was the only clinical-pathological variable which was related to recurrence probability (p=.035).

Conclusions

In this study of LABC patients the metabolic parameters which have a better relationship with recurrence rate are: MTV and TLG in the primary tumor, SUVmax in the regional lymph node disease and whole-body PET data.

Keywords:
Metabolic tumor volume
Total lesion glycolysis
PET/CT
18F-FDG
Locally advanced breast cancer
Resumen
Objetivo

Conocer si el volumen metabólico tumoral (VMT) y la glucólisis tumoral total (GTT) pueden predecir el riesgo de recurrencia en cáncer localmente avanzado de mama (CLAM).

Material y métodos

Estudio retrospectivo de pacientes con CLAM tratados con tratamiento neoadyuvante, local y adyuvante; en seguimiento. Se realizó una 18F-FDG PET/TC para estadificar la enfermedad, midiéndose diferentes parámetros metabólicos (VMT, GTT, SUVmáx y SUVmed), tanto en el tumor primario (T) como en los ganglios metastásicos (N) y en el cuerpo entero (CE).

Resultados

Se incluyeron 40 mujeres entre enero de 2010-2011; seguimiento hasta enero de 2015. Con una mediana de seguimiento de 46 meses el 20% tuvieron recidiva, local (n=2) o a distancia (n=6); fallecieron 3 (38% de aquellas con recidiva y 7,5% del total). EL SUVmáx, VMT y GTT, tanto en T, como N y CE, fue mayor en aquellas que presentaron recidiva. En el T tanto el VMT como la GTT se relacionaron con la recidiva de la enfermedad (p=0,020 y p=0,028, respectivamente), mientras que en la N fue el SUVmáx (p=0,008). Los puntos de corte óptimos para predecir recurrencia fueron: VMT T19,3cm3, GTT T74,4g y SUVmáx N13,8, existiendo 10-12 veces más probabilidad de experimentar progresión tumoral cuando superaban estos umbrales. El grado tumoral fue la única variable clínico-patológica asociada con la recidiva (p=0,035).

Conclusiones

En este estudio de CLAM los parámetros metabólicos que más se asocian con la tasa de recidiva son el VMT y la GTT en el tumor primario, el SUVmáx en la enfermedad ganglionar regional y los 3 índices PET en el cuerpo entero. Estos parámetros podrían utilizarse en la práctica asistencial para identificar a las pacientes con mayor riesgo.

Palabras clave:
Volumen metabólico tumoral
Glucólisis tumoral total
PET/TC
18F-FDG
Carcinoma localmente avanzado de mama

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