Abstract
The Imix radiography system (Oy Imix Ab, Finland) consists of an intensifying screen, optics, and a CCD camera. An upgrade of this system (Imix 2000) with a red-emitting screen and new optics has recently been released. The image quality of Imix (original version), Imix 2000, and two storage-phosphor systems, Fuji FCR 9501 and Agfa ADC70 was evaluated in physical terms (DQE) and with visual grading of the visibility of anatomical structures in clinical images (141 kV). PA chest images of 50 healthy volunteers were evaluated by experienced radiologists. All images were evaluated on Siemens Simomed monitors, using the European Quality Criteria. The maximum DQE values for Imix, Imix 2000, Agfa and Fuji were 11%, 14%, 17% and 19%, respectively (141 kV, 5 μGy). Using the visual grading, the observers rated the systems in the following descending order: Fuji, Imix 2000, Agfa, and Imix. Thus, the upgrade to Imix 2000 resulted in higher DQE values and a significant improvement in clinical image quality. The visual grading agrees reasonably well with the DQE results; however, Imix 2000, received a better score than what could be expected from the DQE measurements.
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Publisher | Society of Photo-Optical Instrumentation Engineers |
| Pages | 251-258 |
| Number of pages | 8 |
| Volume | 3981 |
| State | Published - 2000 |
| Externally published | Yes |
| Event | Medical Imaging 2000: Image Perception and Performance - San Diego, CA, USA Duration: Feb 16 2000 → Feb 17 2000 |
Other
| Other | Medical Imaging 2000: Image Perception and Performance |
|---|---|
| City | San Diego, CA, USA |
| Period | 2/16/00 → 2/17/00 |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
Cite this
Evaluation of image quality of a new CCD-based system for chest imaging. / Sund, Patrik; Bath, Magnus; Kheddache, Susanne; Tylen, Ulf; Mansson, Lars Gunnar.
Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3981 Society of Photo-Optical Instrumentation Engineers, 2000. p. 251-258.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Evaluation of image quality of a new CCD-based system for chest imaging
AU - Sund, Patrik
AU - Bath, Magnus
AU - Kheddache, Susanne
AU - Tylen, Ulf
AU - Mansson, Lars Gunnar
PY - 2000
Y1 - 2000
N2 - The Imix radiography system (Oy Imix Ab, Finland) consists of an intensifying screen, optics, and a CCD camera. An upgrade of this system (Imix 2000) with a red-emitting screen and new optics has recently been released. The image quality of Imix (original version), Imix 2000, and two storage-phosphor systems, Fuji FCR 9501 and Agfa ADC70 was evaluated in physical terms (DQE) and with visual grading of the visibility of anatomical structures in clinical images (141 kV). PA chest images of 50 healthy volunteers were evaluated by experienced radiologists. All images were evaluated on Siemens Simomed monitors, using the European Quality Criteria. The maximum DQE values for Imix, Imix 2000, Agfa and Fuji were 11%, 14%, 17% and 19%, respectively (141 kV, 5 μGy). Using the visual grading, the observers rated the systems in the following descending order: Fuji, Imix 2000, Agfa, and Imix. Thus, the upgrade to Imix 2000 resulted in higher DQE values and a significant improvement in clinical image quality. The visual grading agrees reasonably well with the DQE results; however, Imix 2000, received a better score than what could be expected from the DQE measurements.
AB - The Imix radiography system (Oy Imix Ab, Finland) consists of an intensifying screen, optics, and a CCD camera. An upgrade of this system (Imix 2000) with a red-emitting screen and new optics has recently been released. The image quality of Imix (original version), Imix 2000, and two storage-phosphor systems, Fuji FCR 9501 and Agfa ADC70 was evaluated in physical terms (DQE) and with visual grading of the visibility of anatomical structures in clinical images (141 kV). PA chest images of 50 healthy volunteers were evaluated by experienced radiologists. All images were evaluated on Siemens Simomed monitors, using the European Quality Criteria. The maximum DQE values for Imix, Imix 2000, Agfa and Fuji were 11%, 14%, 17% and 19%, respectively (141 kV, 5 μGy). Using the visual grading, the observers rated the systems in the following descending order: Fuji, Imix 2000, Agfa, and Imix. Thus, the upgrade to Imix 2000 resulted in higher DQE values and a significant improvement in clinical image quality. The visual grading agrees reasonably well with the DQE results; however, Imix 2000, received a better score than what could be expected from the DQE measurements.
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UR - http://www.scopus.com/inward/citedby.url?scp=0033743026&partnerID=8YFLogxK
M3 - Conference contribution
VL - 3981
SP - 251
EP - 258
BT - Proceedings of SPIE - The International Society for Optical Engineering
PB - Society of Photo-Optical Instrumentation Engineers
ER -