The development of large area Position Sensitive Photo Multiplier Tubes (PSPMT) by Hamamatsu is opening new imaging possibilities in Nuclear Medicine. In particular the realization of the 8'' PSPMT prototype represents the first imporitant technological advantage since the discovery of the Anger Camera. PSPMT virtually integrates in one hundreds PMT allowing the creation of dedicated detectors. A Single Tube Gamma Camera based on a 5'' PSPMT dedicated to scintimammography is presented and discussed in this work. To optimize gamma camera response two different scintillating arrays were tested: YAP:Ce and CsI (Tl). Their overall size cover all photocathode active al ea, and crystal pixel size was 2 mm x 2 mm. The defection efficiency was comparable to that of Anger Camera. The best result was obtained by CsI (Tl) scintillating: an intrinsic spatial Resolution of 1.6 mm FWHM and a relative energy resolution of 17% FWHM New image possibilities in scintimammography are offered by Single Tube Gamma Camera operating in the same radiological projection of RX mammography.
Single tube gamma camera for scintimammography / Pani, Roberto; Scopinaro, Francesco; Pellegrini, Rosanna; A., Soluri; A., Pergola; DE VINCENTIS, Giuseppe; M., Ierardi; I. N., Weinberg. - In: ANTICANCER RESEARCH. - ISSN 0250-7005. - STAMPA. - 17:3 B(1997), pp. 1651-1654.
Single tube gamma camera for scintimammography
PANI, Roberto;SCOPINARO, Francesco;PELLEGRINI, Rosanna;DE VINCENTIS, Giuseppe;
1997
Abstract
The development of large area Position Sensitive Photo Multiplier Tubes (PSPMT) by Hamamatsu is opening new imaging possibilities in Nuclear Medicine. In particular the realization of the 8'' PSPMT prototype represents the first imporitant technological advantage since the discovery of the Anger Camera. PSPMT virtually integrates in one hundreds PMT allowing the creation of dedicated detectors. A Single Tube Gamma Camera based on a 5'' PSPMT dedicated to scintimammography is presented and discussed in this work. To optimize gamma camera response two different scintillating arrays were tested: YAP:Ce and CsI (Tl). Their overall size cover all photocathode active al ea, and crystal pixel size was 2 mm x 2 mm. The defection efficiency was comparable to that of Anger Camera. The best result was obtained by CsI (Tl) scintillating: an intrinsic spatial Resolution of 1.6 mm FWHM and a relative energy resolution of 17% FWHM New image possibilities in scintimammography are offered by Single Tube Gamma Camera operating in the same radiological projection of RX mammography.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
