To validate the following theory: "With TRUVIEW ART™ applied a detector's quantitative performance index, MTF(Modulation Transfer Function), is increased 20% or more". This is to examine the effect of the increased MTF index, whether it influences or not the interpreter's preference
Background of Study : DRTECH Corp. has developed and applied for patenting the unique technology of TRUVIEW ART™. TRUVIEW ART™ is advanced image reconstruction technology that restores image quality from the side effects of scattering signals in indirect type scintillator detectors. It is an advanced image pre-processing technology that constructs signal scattering models (PSF) of indirect type detector scintillators. Image sharpness (MTF) is improved by predicting scattering models and eliminating the scattering signal. Purpose of Research and Assumption : Indirect conversion type detectors using scintillators are universal in today's diagnostic imaging area. However, they have a disadvantage of signal scattering compared with direct conversion type detectors. TRUVIEW ART™(Advanced Reconstruction Technology) can restore images from the scattering problems. The purpose of this study is to verify how well it improves the usefulness in clinical diagnostic imaging. Evaluation will measure the improvements in MTF, which is the quantitative performance index of a detector.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
50
Obtain a digital X-ray chest image of the patient
Application of TRUVIEW ART to the original chest x-ray image to create a new set of TRUVIEW ART applied image. Outcome: 2 versions of chest image 1. Original Chest X-ray (w/o TRUVIEW ART) 2. TRUVIEW ART applied image
Comparison of 2 versions of chest image side by side Performance evaluation may consist of detailed categories such as expression of chest structure, visibility level of pulmonary vascular system, etc. For all categories visibility and preference will be scored and each category will be analyzed to point out any statistical difference
Seoul National University Hospital
Seoul, South Korea
RECRUITINGQualitative research using Wilcoxon's signed rank test to compare images produced by test equipment before and after applying TRUVIEW ART (Advanced Reconstruction Tech)
\- Preference score : Eleven anatomic regions(unobscured lung, hilum, minor fissure, retrocardiac lung, lung projected below the diaphragm (subdiaphragmatic lung), azygoesophageal recess, heart border, rib, proximal airway, thoracic spine, and overall appearance) are evaluated. Each pair of images is ranked on a scale from one to five
Time frame: Report composed based on analysis of clinical images accumulated over 6 months
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