Ultrasound Physics – Equations & Formulas with Questions and Correct answers. Graded A+, Exams of Physics

Download Ultrasound Physics – Equations & Formulas with Questions and Correct answers. Graded A+ and more Exams Physics in PDF only on Docsity! Ultrasound Physics – Equations & Formulas with Questions and Correct answers. Graded A+ (Z2 - Z1 / Z2 + Z1) ^2 x 100 - ANSIntensity Reflection Coefficient = Bandwidth - ANSLateral Resolution 1 / F - ANSPeriod 1 / PRP - ANSPulse Repetition Frequency 1 / T - ANSFrequency 1 /PRF - ANSPulse Repetition Period 77 cm/ms x fD / fo x Cosθ - ANSVelocity ac x L - ANSAttenuation (Loss) Average Flow Speeds x Tube diameter x density / viscosity - ANSReynold's Number BW / fo - ANSFractional Bandwidth C / F - ANSWavelength Depth = C x RT time / 2 Distance/depth = RT time / 13 - ANSRange Depth x PRF ≤ 77 cm/ms - ANSPulse f (ʎ) C = B / ρ - ANSPropagation Speed fD (kHz) = fo x 2 x V x Cosθ / C - ANSDoppler Equation FD = Fr - Fi - ANSDoppler Effect FD = Fr - Fi - ANSDoppler Shift Fo / BW - ANSQuality Factor fo = Ct / 2 x Th - ANSOperating Frequency FR = 77,000 / Pen x LPF x n - ANSColor Frame Rate ITC = Transmitted intensity / incident intensity ITC = 1 - IRC %: IRC + ITC = 100% Deci.: IRC + ITC = 1 - ANSIntensity Transmission Coefficient ʎ x n / 2 - ANSSpatial Pulse Length NL = PRF / 2 - ANSAliasing NZL = (aperture)2 x Frequency / 4 x C NZL = (Aperture)2 x Frequency 6 (4 x 1.54) - ANSSound Beam Original/Incident Intensity = (Ii) x IRC - ANSTransmitted Intensity Original/Incident Intensity = (Ir) x IRC - ANSReflected Intensity P / A - ANSIntensity PD / PRP x 100 - ANSDuty Factor Pen x n x LPF x FR ≤ 77,000 cm/s - ANSTemporal Resolution pr / √ f - ANSMechanical Index PRF = n x LPF x FR - ANSTemporal Resolution (Time) Q = Pressure difference / Resistance to flow - ANSVolumetric Flow Rate Q = ΔP x π x d4 / 128 x L x η - ANSPoiseuille's Equation SPL / 2 - ANSAxial Resolution T x n - ANSPulse Duration True negative / false positive and true negative - ANSSpecificity true positive / true positive and false negative - ANSSensitivity True positive and true negative / TP + FP + TN + FN - ANSAccuracy