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Inicio Revista Española de Medicina Nuclear e Imagen Molecular (English Edition) Hybrid-fusion SPECT/CT systems in parathyroid adenoma: Technological improvement...
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Vol. 35. Issue 6.
Pages 385-390 (November - December 2016)
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Vol. 35. Issue 6.
Pages 385-390 (November - December 2016)
Special collaboration
Hybrid-fusion SPECT/CT systems in parathyroid adenoma: Technological improvements and added clinical diagnostic value
Sistemas de imagen híbrida de fusión SPECT/TC en adenoma de paratiroides: avances tecnológicos y valor añadido en el diagnóstico clínico
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K.K. Wonga,b, S. Chondrogiannisc, H. Bowlesd, D. Fusterd, N. Sánchezd, L. Rampinc, D. Rubelloc,
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a Division of Nuclear Medicine, Department of Radiology, University of Michigan, Ann Arbor, MI, USA
b Nuclear Medicine Service, VA Ann Arbor Healthcare System, Ann Arbor, MI, USA
c Department of Nuclear Medicine, Radiology, Medical Physics, Clinical Pathology, Rovigo Hospital, Rovigo, Italy
d Nuclear Medicine Department, Hospital Clinic, Barcelona University, Barcelona, Spain
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Abstract

Nuclear medicine traditionally employs planar and single photon emission computed tomography (SPECT) imaging techniques to depict the biodistribution of radiotracers for the diagnostic investigation of a range of disorders of endocrine gland function. The usefulness of combining functional information with anatomy derived from computed tomography (CT), magnetic resonance imaging (MRI), and high resolution ultrasound (US), has long been appreciated, either using visual side-by-side correlation, or software-based co-registration. The emergence of hybrid SPECT/CT camera technology now allows the simultaneous acquisition of combined multi-modality imaging, with seamless fusion of 3D volume datasets. Thus, it is not surprising that there is growing literature describing the many advantages that contemporary SPECT/CT technology brings to radionuclide investigation of endocrine disorders, showing potential advantages for the pre-operative locating of the parathyroid adenoma using a minimally invasive surgical approach, especially in the presence of ectopic glands and in multiglandular disease. In conclusion, hybrid SPECT/CT imaging has become an essential tool to ensure the most accurate diagnostic in the management of patients with hyperparathyroidism.

Keywords:
Fusion-hybrid imaging
Parathyroid scintigraphy
SPECT/CT
Parathyroid adenoma
Resumen

La medicina nuclear emplea tradicionalmente imágenes estáticas 2D, aunque en los últimos años se ha incrementado la imagen 3D tomográfica SPECT. Estas técnicas de imagen permiten la observación de la biodistribución de los radiotrazadores, destinados a la investigación diagnóstica de trastornos endocrinos que cursan con afectación glandular. La utilidad de combinar la información funcional con la anatómica tomando como referencia la tomografía computarizada (TC), la resonancia magnética (RM) y los ultrasonidos de alta resolución (US) ha sido estudiada mediante una correlación visual primero y posteriormente con el soporte de un software de co-registro de imágenes, sin obtener resultados satisfactorios. Los equipos híbridos SPECT/TC permiten la adquisición simultánea de diferentes modalidades de imagen, consiguiendo una fusión adecuada de ellas y su posterior reconstrucción volumétrica. Así pues, no es de extrañar que cada vez observemos mayor evidencia en la literatura que describe las múltiples ventajas de la tecnología SPECT/TC en la localización preoperatoria del adenoma de paratiroides con cirugía mínimamente invasiva, especialmente en presencia de patología multiglandular o de glándulas ectópicas. En resumen, la imagen híbrida se ha convertido en una herramienta esencial que garantiza la mayor exactitud diagnóstica en el manejo de pacientes con hiperparatiroidismo.

Palabras clave:
Imagen de fusión híbrida
Gammagrafía de paratiroides
SPECT/TC
Adenoma de paratiroides

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