6533b7d0fe1ef96bd125ac55

RESEARCH PRODUCT

Assessment of image quality of intracoronary ultrasound systems with tissue-equivalent vessel phantoms

Hans-jürgen RupprechtP. StaehrRüdiger BrenneckeT. VoigtlaenderJ. MeyerStefan Krass

subject

Speckle patternTissue equivalentmedicine.medical_specialtyMaterials scienceCross-correlationImage qualityResolution (electron density)CalibrationmedicineIntracoronary ultrasoundUltrasonic sensorRadiologyBiomedical engineering

description

Imaging of vascular structures by intracoronary ultrasound (ICUS) is finding more and more applications in coronary diagnosis and in the assessment of interventional access. The authors describe a method for easy and quick production of tissue-equivalent vessel phantoms from a special hydrocolloid. The mechanical tolerance is less than 3/100 mm. With these phantoms the authors tested the calibration and measured the resolution properties of the SONOS intravascular ultrasonic system (Hewlett Packard). The measurements revealed a slight space related underestimation of diameters up to 280 /spl mu/m. Using cross correlation and auto correlation functions the authors analyzed digitized ultrasonic pictures to determine the correlation length of speckle in three dimensions and derived an estimate of the space related resolution cell size. >

yearjournalcountryeditionlanguage
2002-12-17Computers in Cardiology 1994
https://doi.org/10.1109/cic.1994.470192