Aliasing - Study guides, Class notes & Summaries

SPI Mock Exam (2024) || Complete Questions & Answers (Graded A+) SPI Mock Exam (2024) || Complete Questions & Answers (Graded A+) The mechanical index predicts the likelihood of: A. Cavitation B. Aliasing C. Turbulence D. Doppler shift E. Thermal damage - ANSWER - A. Cavitation Mirror imaging artifact is a result of a(n): A. A weak reflector B. Strong reflector C. Impedance difference D. Weak attenuation structure E. Strong attenuating structure - ANSWER - B. Stro...

Adobe Photoshop CC Test (2023/2024) Already Passed Quick Selection Tool One of the easiest ways to make a selection. You simply paint an area of an image, and the tool automatically finds the edges. You can add or subtract areas of the selection until you have exactly the area you want. Auto Enhance When Auto Enhance is selected, the Quick Selection tool creates better quality selections, with edges that are truer to the object. The selection process is a little slower than using the Quick Sele...

Sample rate - Correct Answer-In order to increase the HIGH FREQUENCY RESPONSE of your digital audio system youwould increase the ________________ Dynamic range - Correct Answer-In order to increase the ______________ of your digital audio system you would increase the BIT DEPTH Low pass filter - Correct Answer-In Analog to Digital stage of a digital audio osystem a __________________ is used to eleminate the effects of aliasing Nyquist, nyquist - Correct Answer-According to the ________...

This converter converts the numbers stored in memory to proportional voltages that control the brightness on a CRT monitor Digital to Analog Converter The Digital Scan Converter is AKA: Image Memory This is where images are stored in the ultrasound system: Scan Converter The system component which is most responsible for transmit focusing: Beam Former The process of filling in the empty spaces between scan lines: Interpolation Red, Green & Blue- The three colors used for color m...

Which artifact may cause structures to look deeper than they actually are? A. Side lobe B. Shadowing C. Refraction D. Propagation speed error E. Slice thickness -Correct Answer D. propagation speed error The optimum operating frequency for a broad-bandwidth transducer would be: A. 6 MHz B. 7 MHz C. 8 MHz D. 9 MHz E. 10 MHz -Correct Answer C. 8 In breast sonography, which of the following is NOT significantly affected by the limited field of view when imaging superficia...

SPI 2025 Guaranteed A+ What is the effect of decreasing the transducer frequency on image quality? ️️Decreasing the transducer frequency improves penetration depth but reduces image resolution, making it better for imaging deeper structures. How does beam width impact lateral resolution? ️️Narrower beam width improves lateral resolution by providing clearer detail of structures located side by side. What causes acoustic shadowing, and how does it appear on an ultrasound ima...

Edelmen's SPI Exam Review Guaranteed Success What is the relationship between frequency and wavelength in ultrasound? ️️Frequency and wavelength are inversely related; as frequency increases, wavelength decreases, enhancing resolution but reducing penetration depth. How does acoustic impedance affect ultrasound imaging? ️️Acoustic impedance is the resistance to sound wave transmission; differences in impedance between tissues cause reflections that form the ultrasound imag...

Pro Tools 101 Practice Exam with Correct Solutions. In order to increase the HIGH FREQUENCY RESPONSE of your digital audio system youwould increase the ________________ ️ Sample rate In order to increase the ______________ of your digital audio system you would increase the BIT DEPTH ️ Dynamic range In Analog to Digital stage of a digital audio osystem a __________________ is used to eleminate the effects of aliasing ️ Low pass filter According to the _____________ theorem the high...

Pro Tools 101 Practice Exam Questions with Correct Answers 100% Verified In order to increase the HIGH FREQUENCY RESPONSE of your digital audio system youwould increase the ________________ - Correct Answer Sample rate In order to increase the ______________ of your digital audio system you would increase the BIT DEPTH - Correct Answer Dynamic range In Analog to Digital stage of a digital audio osystem a __________________ is used to eleminate the effects of aliasing - Correct Answer Low ...

Electromagnetic energy is symbolized by a sine wave that has two components of measurements, they are: - Answer-Wavelength and frequency Of the following techniques which one is applied to prevent "crosstalk" between multi-slices with little or no interslice "gap" - Answer-Interleaving The artifact known as aliasing, wrap around or fold over will always show up in what gradient direction? - Answer-Phase encoding Which of the following causes of artifacts on MR images is most commonly m...