The Use of Radiation Detectors in Medicine: Radiation Detectors for Morphological Imaging

author: Alberto Del Guerra, Department of Physics "E. Fermi", INFN, University of Pisa
published: Sept. 10, 2010,   recorded: April 2009,   views: 5838
released under terms of: Creative Commons Attribution Non-Commercial Share Alike (CC-BY-NC-SA)

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The development of radiation detectors in the field of nuclear and particle physics has had a terrific impact in medical imaging since this latter discipline took off in late ’70 with the invention of the CT scanners. The massive use in High Energy Physics of position sensitive gas detectors, of high Z and high density scintillators coupled to Photomultiplier (PMT) and Position Sensitive Photomultipliers (PSPMT), and of solid state detectors has triggered during the last 30 years a series of novel applications in Medical Imaging with ionizing radiation. The accelerated scientific progression in genetics and molecular biology has finally generated what it is now called Molecular Imaging. This field of research presents additional challenges not only in the technology of radiation detector, but more and more in the ASIC electronics, fast digital readout and parallel software. In this series of three lectures I will try to present how high energy physics and medical imaging development have both benefited by the cross-fertilization of research activities between the two fields and how much they will take advantage in the future. With particular evidence to Medical Imaging I will address and discuss: 1 - The use of gas, scintillator and solid state detectors in digital radiology and digital mammography, clinical CT and small animal CT. 2 - The use of scintillators and PMT/PSPMTs in functional imaging and in particular: - For Molecular Imaging with PET and SPECT (clinical and preclinical); - For Breast Cancer Imaging (PEM and SPEM, PEMT and SPEMT); - For on line PET dosimetry in hadrontherapy. 3 - The impact of the novel solid state photomultipliers in Medical Imaging and the advent of multimodality imaging such as PET/CT and SPECT/CT, PET/MRI and SPECT/MRI.

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Reviews and comments:

Comment1 Lanfranco Barbieri , January 9, 2021 at 5:58 p.m.:

Mi congratulo con Lei per i suoi meriti scientifici e i
relativi riconoscimenti.
Io dopo un breve colloquio che ebbi con Lei - nonostante una sua opinione sostanzialmente negativa sull'impiego della termografia in senologia - ho continuato ad occuparmene.
Personalmente penso che, in futuro, le metodiche diagnostiche che fanno uso di radiazioni saranno sempre più ridimensionate e sostituite da altre a minor rischio.
Si può dimostrare che, in non poche applicazioni, l'attuale termografia - innocua e facilmente gestibile - offre già
informazioni ad alto contenuto diagnostico in molti ambiti (senologia compresa).
Porgo i miei più sentiti saluti.
Prof. Lanfranco Barbieri

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