Gray scale - Study guides, Class notes & Summaries

Davies Adult Echo UPDATED Exam Questions and CORRECT Answers The American Society of Echocardiography adopted the "leading edge" method of measurement because: A. People were turning up the gain too much. B. The nature of the interaction between ultrasound and anatomical interfaces makes this advisable. C. The advent of gray-scale M mode made this possible. D. It produces the most consistent and reproducible measurements. - CORRECT ANSWERD. In 1978 the American Society of Echoc...

PSYC 515 Exam Questions and Answers Latest Updated 2024/2025 | Graded A+. James is interested in how weight influences self-esteem levels in elementary school children. Participants were grouped based on their BMI (underweight, normal weight, or overweight) and their self-esteem levels were measured using the PiersHarris Children’s Self-Concept Scale. What type of claim would be most consistent with this research design? Causal Associational Frequency IncorrectQuestion 2 0 / 2 pt...

RADT 1075 exam 1 questions & answers 2024/2025 An increased part thickness results in: - ANSWERSincreased beam attenuation ( beam absorption) A body tissue with an increased tissue density results in: - ANSWERSincreased beam attenuation Unwanted exposure to the IR due to scatter radiation is called: - ANSWERSfog Brightness/density is a quality related to the _____________ of the radiographic image. - ANSWERSVisibility of structures Contrast is a quality related to the ______ of ...

T/F thru the manipulation of computed tomography numbers of the various tissues, the picture can be changed to show soft tissues and dense structures such as bone - correct answers true T/F a large window width means a long gray scale - correct answers true T/F as the window width decreases, the image contrast increases - correct answers true the purpose of the imaging system is to : 1. produce x rays

Art: Content Knowledge (5134) — Form 2 (2019) 100% Solved Which of the following terms refers to the name of a color, such as red, orange, or bluish green? A.Tint B.Intensity C.Hue D.Opacity Correct Answer: C Option (C) is correct. Hue is the term used to refer to the name of a color. A red hue, for example, may include a range of colors associated with red. The image presents a large oil painting of an Ethiopian-Israeli man dressed in a blue T-shirt and blue jeans standing in the center ...

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...

URR Mock Exams Questions with Correct Answers Which of the following is true regarding CW transducer structure and function? - Answer-CW probes usually have no backing material except a pocket of air posterior to the element You are performing a PW doppler exam. only two cardiac cycles are demonstrated on the screen at one time. What adjustment can be made to demonstrate 5-6 cardiac cycles on the screen at one time? - Answer-decrease the sweep speed What is the primary factor that determ...

The doppler shift is 5000 Hz. The pulse repetition frequency is 9000 Hz. Which of the following is true? A. peak pressure gradient is 36mmHg B. range ambiguity will occur C. aliasing will occur D. the peak velocity is equal to 2 m/s - ️️C. aliasing will occur When evaluating a suspected arterial stenosis, a doppler angel of ____ degrees will produce the most accurate flow velocity. A. 0 B. 30 C. 60 D. 90 - ️️A. 0 Spatial resolution is: A. the minimum reflector separation req...

Primary colors Red yellow blue Secondary colors Green orange violet Tertiary colors Red-orange Blue-green Yellow-orange What makes secondary color 2 primary colors How do you make a tertiary color Mix a primary and secondary Analogous colors Colors next to each other on the wheel Tint Add whiteShade Add black/gray 6 principles of design Rhythm Balance Focal point Unity Proportion/scale Harmony What principle creates actual and physical stability Mechanical balance What if No mecha...

Exam 1: Modules A,B,C,D - Exam 1: Modules A,B,C,D Know formulas: all 7 1. mAs 2. 15% kVp 3. MF= SID/SOD 4. OS= Image Size (IS)/MF 5. Grid and Grid Ratio 6. Density/ Direct Square Law 7. Inverse Square Law - Know formulas: all 7 1. mAs 2. 15% kVp 3. MF= SID/SOD 4. OS= Image Size (IS)/MF 5. Grid and Grid Ratio 6. Density/ Direct Square Law 7. Inverse Square Law Know all increase and decrease for: Contrast (gray scale) IR Exposure (density, blk) Resolution (detail, sharpness) Di...