Abstract
Bu çalısmada, girisimsel anjiyografi incelemelerinde kullanılan bir anjiyo sisteminin görüntü kalitesi matematiksel yöntemlerle ölçülmüstür. Dijital sistemlerin performans ölçümleri için uygulanan yeni yöntemler, anjiyografik sistemlerin görüntü kalitesinin nümerik olarak degerlendirilmesinde kullanılmıstır. Bu baglamda MTF (Modülasyon Transfer Fonksiyonu) , NPS (Gürültü Dagılım Spektrumu) ölçülmüs ve DQE (Deteksiyon Kuantum Etkinligi) bu ölçüm sonuçları kullanılarak hesaplanmıstır.
Keywords
Görüntü Kalitesi Modülasyon Transfer Fonksiyonu Gürültü Dağılım Spektrumu Dedeksiyon Kuantum Etkinliği
References
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- Buhr, E.,Günther-Kohfahl, S., Neitzel, U. 2003. Accuracy of A Simple Method for Deriving the Presampled Modulation Transfer Function of A Digital Radiographic System from An Edge Image. Med. Phys., 30,2323-2331 . Dobbins III, J. T., Ergun, D.L., Rutz, L., Hinshaw, D.A., Blume, H., C.Clark, D. 1995. DQE (f) of Four Generations of Computed Radiography Acquisition Devices. Med. Phys., 22,1581-1593.
- Flynn, M J., Samei, E. 1999. Experimental Comparison of Noise and Resolution for 2k and 4k Storage Phosphor Radiography Systems. Med. Phys., 26,1612-1623 . Fujita, H., Doi, K., Giger, M.L. 1985. Investigation of Basic Imaging Properties in Digital Radiography. 6. MTFs of II-TV Digital Imaging System. Med. Phys., 12,713-720.
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- Giger, M. L., Doi, K., Fujita, H. 1986. Investigation of Basic Imaging Properties in Digital Radiography.7.Noise Wiener Spectra of II-TV Digital Imaging Systems. Med. Phys., 13,131-138.
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- International Electrotechnical Commission. Medical electrical equipment-Characteristics of digital imaging devices-Part 1: Determination of the detective quantum efficiency. IEC 62220-1 (Geneva:IEC) (2003)
- Marsh, D.M., Cooney, P., McMahon, B.P., Malone, J.F. 1995. Measurement of Wiener Spectra in Digital Systems. Radiat. Prot. Dosim., 57, 273-276.
- Maryellen, L. G., Hiroshi, F., Kunio, D., Heang-Ping C. 1986. Investigation of basic imaging properties in digital radiography. 5. Characteristic curves of TVII digital systems. Med. Phys., 13, 13-18.
- Peterzol, A., Padovani, R., Quai, E., Vano, E., Prieto, C., Aviles, P. 2005. The application of image quality measurements for digital angiography. Radiat Prot. Dosim., 117(1-3), 38-43.
- Samei, E., Flynn, M.J. 1998. A Method for Measuring the Presampled MTF of Digital Radiographic Systems Using An Edge Test Device. Med. Phys., 25,102-113.
- Williams, M.B., Mangiafico, P.A., Simoni, P.U. 1999. Noise Power Spectra of Images from Digital Mammography Detectors. Med. Phys., 26,1279-1293.
Abstract
References
- Bath, M. 2003. Imaging Properties of Digital Radiographic Systems. Vasastadens Bokbinderi AB, Göteborg, 94p. Sweden.
- Buhr, E.,Günther-Kohfahl, S., Neitzel, U. 2003. Accuracy of A Simple Method for Deriving the Presampled Modulation Transfer Function of A Digital Radiographic System from An Edge Image. Med. Phys., 30,2323-2331 . Dobbins III, J. T., Ergun, D.L., Rutz, L., Hinshaw, D.A., Blume, H., C.Clark, D. 1995. DQE (f) of Four Generations of Computed Radiography Acquisition Devices. Med. Phys., 22,1581-1593.
- Flynn, M J., Samei, E. 1999. Experimental Comparison of Noise and Resolution for 2k and 4k Storage Phosphor Radiography Systems. Med. Phys., 26,1612-1623 . Fujita, H., Doi, K., Giger, M.L. 1985. Investigation of Basic Imaging Properties in Digital Radiography. 6. MTFs of II-TV Digital Imaging System. Med. Phys., 12,713-720.
- Fujita, H., Tsai, D.Y., Takumi, I., Kunio, D., Morishita, J., Ueda, K., Ohtsuka, A. 1992. A Simple Method for Determining the Modulation Transfer Function in Digital Radiography. IEEE Transactions On Medical Imaging, 11, 34-39.
- Giger, M. L., Doi, K., Fujita, H. 1986. Investigation of Basic Imaging Properties in Digital Radiography.7.Noise Wiener Spectra of II-TV Digital Imaging Systems. Med. Phys., 13,131-138.
- Greer, P.B., van Doorn, T. 2000. Evaluation of An Algorithm for the Assessment of the MTF Using An Edge Method. Med. Phys., 27,2048-2059.
- International Electrotechnical Commission. Medical electrical equipment-Characteristics of digital imaging devices-Part 1: Determination of the detective quantum efficiency. IEC 62220-1 (Geneva:IEC) (2003)
- Marsh, D.M., Cooney, P., McMahon, B.P., Malone, J.F. 1995. Measurement of Wiener Spectra in Digital Systems. Radiat. Prot. Dosim., 57, 273-276.
- Maryellen, L. G., Hiroshi, F., Kunio, D., Heang-Ping C. 1986. Investigation of basic imaging properties in digital radiography. 5. Characteristic curves of TVII digital systems. Med. Phys., 13, 13-18.
- Peterzol, A., Padovani, R., Quai, E., Vano, E., Prieto, C., Aviles, P. 2005. The application of image quality measurements for digital angiography. Radiat Prot. Dosim., 117(1-3), 38-43.
- Samei, E., Flynn, M.J. 1998. A Method for Measuring the Presampled MTF of Digital Radiographic Systems Using An Edge Test Device. Med. Phys., 25,102-113.
- Williams, M.B., Mangiafico, P.A., Simoni, P.U. 1999. Noise Power Spectra of Images from Digital Mammography Detectors. Med. Phys., 26,1279-1293.
Details
| Primary Language | English |
|---|---|
| Journal Section | TEMEL BİLİMLER |
| Authors | |
| Publication Date | April 9, 2009 |
| Published in Issue | Year 2007 Volume: 11 Issue: 3 |
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e-ISSN :1308-6529
Linking ISSN (ISSN-L): 1300-7688
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