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Title:Evaluation of silicona microstrip detectors as X-ray sensors in digital mammography
Authors:ID Mali, Tadej (Author)
ID Cindro, Vladimir (Author)
ID Mikuž, Marko (Author)
ID Zdešar, Urban (Author)
ID Jančar, Breda (Author)
Files:.pdf PDF - Presentation file, download (688,49 KB)
MD5: D43B9197FBF4E6F3E77EDBB6E058C62B
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo OI - Institute of Oncology
Abstract:Background. Position sensitive silicon microstrip detectors are used as sensors for X rays in a digital imaging system. Silicon detectors were used inan edgeon geometry, yielding high X ray detection efficiency. Material and methods. A small detector system was assembled and tested. Images of a standard, 5 cm thick phantom were made and evaluated. It is demonstrated, thatthe use of silicon detectors in mammography could significantly contributeto a reduction of dose. All images were made with skin entrance doses lower than 1 mGy. Results and conclusion. Microcalcifications with a diameter of 350microm could still be detected with skin entrance doses of about 0.25 mGy. It was demonstrated that a 5 Ip/mm pattern can be detected. Image processing should further improve the image quality.
Publication status:Published
Publication version:Version of Record
Publication date:01.01.1999
Publisher:Slovenian Medical Association - Slovenian Association of Radiology, Nuclear Medicine Society, Slovenian Society far Radiotherapy and Oncology, and Slovenian Cancer Society
Year of publishing:1999
Number of pages:str. 237-244
Numbering:Vol. 33, št. 3
Source:Ljubljana
PID:20.500.12556/DiRROS-17931 New window
UDC:539.1
ISSN on article:1318-2099
COBISS.SI-ID:14414887 New window
Copyright:by Authors
Publication date in DiRROS:22.01.2024
Views:228
Downloads:44
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Record is a part of a journal

Title:Radiology and oncology
Shortened title:Radiol. oncol.
Publisher:Slovenian Medical Society - Section of Radiology, Croatian Medical Association - Croatian Society of Radiology
ISSN:1318-2099
COBISS.SI-ID:32649472 New window

Secondary language

Language:Slovenian
Title:Ovrednotenje silicijevih mikropasovnih detektorjev kot rentgenskih senzorjev za digitalno mamografijo
Abstract:Izhodišče. Pozicijsko občutljive silicijeve detektorje smo uporabili kot senzorje rentgenskih žarkov v sistemu za digitalno rentgensko slikanje. Silicijevi detektorje smo uporabili v t. i. geometriji "na rob", kjer rentgenski žarki zadenjejo detektor s strani, zato lahko dosežemo visok izkoristek detekcije - preko 80% pri energiji rentgenskih fotonov 20 keV. Material in metode. Sestavili in testirali smo majhen sistem. Posneli smo slike standardnega, 5 cm debelega fantoma in jih ovrednotili. Rezultati in zaključki. Silicijevi detektorji lahko znatno prispevajo k zmanjšanju doze primamografskih preiskavah. Vse slike so bile posnete pri vstopni kožni dozi do 1 mGy. Mikrokalcifikacije s premerom 350 microm so še vedno vidne z vstopnokožno dozo 0.25 mGy. Pokazali smo, da z našim sistemom uspešno zaznamo testni vzorec črt z gostoto 5 parov na mm. Z nadaljno digitalno obdelavo lahkoše dodatno izboljšamo kvaliteto slik.


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