Low contrast resolution - Study guides, Class notes & Summaries

ARDMS SPI Practice Test (2024) || With Questions & All Correct Answers (Rated A+) ARDMS SPI Practice Test (2024) || With Questions & All Correct Answers (Rated A+) A slice-thickness phantom measures which plane of the transducer? a. the scanning plane b. The elevation plane c. The azimuthal plane d. The temporal plane - ANSWER - b. Which of the following is not a technique that will reduce grating lobes? a. Tissue harmonic imaging b. Apodization c. Subdicing d. Edge enhanceme...

ESP X-Zone Practice Test Questions And Answers Which of these factors has the greatest influence on pulse repetition period? a. thickness of PZT crystal b. displays dynamic range c. display depth d. impedance of the medium e. attenuation of the sound beam c. display depth A sound wave with a frequency of 5 MHz is traveling in soft tissue. What is the wavelength of this sound? a. 0.3mm b. 5mm c. 0.5mm d. 0.3cm e. 0.5m a. 0.3mm What is the accuracy of reflector depth posi...

Mosby CT Registry Review (2023/2024) Graded A What is the smallest component of a digital image pixel How many CT numbers are assigned to each pixel in the image matrix? One In a CT image, the CT number Of a material is dependent on its linear attenuation coefficient Each two-dimensional square of data that make up the CT image is called a pixel What is an element of the digital image pixel Which of the following influences the spatial resolution in cardiac CT imaging *detector size *recons...

CT 249 Final exam Questions with 100% Correct Answers | Verified | Updated Which of the following controls brightness in the CT image? a) contrast resolution b) window width c) spatial resolution d) window level - answerd) window level 350 Hounsfield units (HU) can be described as a wide window width in CT. True False - answerFalse Which of the following describes the CT post-processing technique known as "windowing"? a) Image compression b) Image smoothing c) Image enhancement d...

Adult Echocardiography Practice Exam #1 Questions and Answers Inferior vena cava, superior vena cava, & hepatic veins demonstrate systolic flow reversal. What type of valve abnormality would you expect to see? A. mild mitral regurgitation B. severe mitral regurgitation C. mild tricuspid regurgitation D. severe tricuspid regurgitation - ANS ️️ D When estimating pulmonary artery pressure, the most reliable non-invasive method is: A. tricuspid valve regurgitant jet velocity B. pulmon...

Portage Learning: Microbiology Module 3 Already Graded A Define the measurements micrometer and nanometer. A micrometer (μm) is defined as being one-millionth of a meter and is commonly designated at 10-6 meters. A nanometer (nm) equals 10-9 m or one-billionth of a meter. What are the two critical factors that influence your ability to see an object? Resolution and contrast. Resolution refers to the distance between two objects at which the objects still can be seen as separate. Poor or low r...

What is remote sensing? - Knowledge and techniques used to determine the properties of targets without direct contact between the measuring device and these targets What is the only energy that can be transmitted through a vacuum or a medium? - Electromagnetic radiation What is resolution? - Characteristics of the sensor/imagery that determine the type of application What are the 4 types of resolution? - Spatial, spectral, temporal, radiometric What is spatial resolution? - Defined b...

What is the smallest component of a digital image - pixel How many CT numbers are assigned to each pixel in the image matrix? - One In a CT image, the CT number - Of a material is dependent on its linear attenuation coefficient Each two-dimensional square of data that make up the CT image is called a - pixel What is an element of the digital image - pixel Which of the following influences the spatial resolution in cardiac CT imaging - *detector size *reconstruction interval *pitch As pat...

Which can be attributed to the uncoupling effect? - correct answers Even when the mAs or kVp setting is too high, a good image results Which is an imaging challenge that depends on contrast resolution? - correct answers Distinguishing between the white matter and gray matter of the brain The ability to differentiate a structure that varies only slightly is density from its surroundings? - correct answers low contrast resolution An image of a water phantom displays a range of pixel value...

____ is defined as specific area or location where Doppler shift info is being obtained. A. spectral broadening B. nyquist limit C. sample volume D. spectral window -answer- C. sample volume Spatial resolution is: A. the minimum reflector separation required to produce separate echos. B. highest with linear phased arrays. C. the weakest reflected signal the transducer can receive D. another term for slice thickness resolution -answer- A. the minumum reflector separation required to pr...