Improving accuracy of electron density measurement in the presence of metallic implants using orthovoltage computed tomography

The goal of this study was to evaluate the improvement in electron density measurement and metal artifact reduction using orthovoltage computed tomography (OVCT) imaging compared with conventional kilovoltage CT (KVCT). For this study, a bench-top system was constructed with adjustable x-ray tube vo...

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Veröffentlicht in:	Medical physics (Lancaster) 2008-05, Vol.35 (5), p.1932-1941
Hauptverfasser:	Yang, Ming, Virshup, Gary, Mohan, Radhe, Shaw, Chris C., Zhu, X. Ronald, Dong, Lei
Format:	Artikel
Sprache:	eng
Schlagworte:	ACCURACY ALUMINIUM Aluminum - chemistry ANIMAL TISSUES biological tissues CALIBRATION Computed tomography computerised tomography COMPUTERIZED TOMOGRAPHY Conformal radiation treatment CT number calibration Dosimetry ELECTRON DENSITY Electrons Equipment Design Hounsfield unit Humans Image Processing, Computer-Assisted - instrumentation Image Processing, Computer-Assisted - methods Image sensors IMPLANTS Medical image artifacts Medical image reconstruction Medical imaging Medical X‐ray imaging metal artifacts Metals - chemistry Models, Statistical orthovoltage CT PHANTOMS Phantoms, Imaging proton therapy Protons radiation therapy RADIOLOGY AND NUCLEAR MEDICINE RADIOTHERAPY Radiotherapy Planning, Computer-Assisted Reproducibility of Results Tissues TITANIUM Titanium - chemistry Tomography, X-Ray Computed - methods X RADIATION X-RAY TUBES X‐ray imaging
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