TY - JOUR
T1 - Evaluation of image quality and task performance for a mobile C-arm with a complementary metal-oxide semiconductor detector
AU - Abiola, Godwin O.
AU - Sheth, Niral M.
AU - Zbijewski, Wojciech
AU - Jacobson, Matthew
AU - Bailey, Christopher
AU - Filtes, John
AU - Kleinszig, Gerhard
AU - Vogt, Sebastian K.
AU - Soellradl, Stefan
AU - Bialkowski, Jens
AU - Anderson, William S.
AU - Siewerdsen, Jeffrey H.
AU - Weiss, Clifford R.
N1 - Funding Information:
This research was funded by the U.S. National Institutes of Health (Grant No. R01-EB-017226) and Siemens Healthineers. We would like to thank Greg M. Osgood, MD, for his assistance with the study.
Publisher Copyright:
© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE).
PY - 2020/1/1
Y1 - 2020/1/1
N2 - We assessed interventional radiologists' task-based image quality preferences for two- and three-dimensional images obtained with a complementary metal-oxide semiconductor (CMOS) flat-panel detector versus a hydrogenated amorphous silicon (a-Si:H) flat-panel detector. CMOS and a-Si:H detectors were implemented on identical mobile C-arms to acquire radiographic, fluoroscopic, and cone-beam computed tomography (CBCT) images of cadavers undergoing simulated interventional procedures using low- and high-dose settings. Images from both systems were displayed side by side on calibrated, diagnostic-quality displays, and three interventional radiologists evaluated task performance relevant to each image and ranked their preferences based on visibility of pertinent anatomy and interventional devices. Overall, CMOS images were preferred in fluoroscopy (p = 0.002) and CBCT (p = 0.004), at low-dose settings (p = 0.001), and for tasks associated with high levels of spatial resolution [e.g., fine anatomical details (p = 0.006) and assessment of interventional devices (p = 0.015)]. No significant difference was found for fluoroscopic imaging tasks emphasizing temporal resolution (p = 0.072), for radiography tasks (p = 0.825), when using high-dose settings (p = 0.360), or tasks involving general anatomy (p = 0.174). The image quality preferences are consistent with reported technical advantages of CMOS regarding finer pixel size and reduced electronic noise.
AB - We assessed interventional radiologists' task-based image quality preferences for two- and three-dimensional images obtained with a complementary metal-oxide semiconductor (CMOS) flat-panel detector versus a hydrogenated amorphous silicon (a-Si:H) flat-panel detector. CMOS and a-Si:H detectors were implemented on identical mobile C-arms to acquire radiographic, fluoroscopic, and cone-beam computed tomography (CBCT) images of cadavers undergoing simulated interventional procedures using low- and high-dose settings. Images from both systems were displayed side by side on calibrated, diagnostic-quality displays, and three interventional radiologists evaluated task performance relevant to each image and ranked their preferences based on visibility of pertinent anatomy and interventional devices. Overall, CMOS images were preferred in fluoroscopy (p = 0.002) and CBCT (p = 0.004), at low-dose settings (p = 0.001), and for tasks associated with high levels of spatial resolution [e.g., fine anatomical details (p = 0.006) and assessment of interventional devices (p = 0.015)]. No significant difference was found for fluoroscopic imaging tasks emphasizing temporal resolution (p = 0.072), for radiography tasks (p = 0.825), when using high-dose settings (p = 0.360), or tasks involving general anatomy (p = 0.174). The image quality preferences are consistent with reported technical advantages of CMOS regarding finer pixel size and reduced electronic noise.
KW - complementary metal-oxide semiconductor
KW - flat panel detector
KW - hydrogenated amorphous silicon
KW - interventional radiologist
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U2 - 10.1117/1.JMI.7.1.015501
DO - 10.1117/1.JMI.7.1.015501
M3 - Article
C2 - 32016135
AN - SCOPUS:85081237992
SN - 2329-4302
VL - 7
JO - Journal of Medical Imaging
JF - Journal of Medical Imaging
IS - 1
M1 - 015501
ER -