Digital rad 370 quiz #1 2023 with verified questions and answers

Which modality was the first to use the principle of digital imaging? CT Who was the first to incorporate digital imaging with the CT scanner? Godfrey Hounsfield Teleradiology, moving images via telephone lines to and from remote locations, was first conceptualized by: Albert Jutras The first commercial CT scanners could image the: head only Early picture archival and communication systems were first developed: by the U.S. military. CR acquires an image through: The use of a storage phosphor plate In a DR system, which of the following are needed to produce a radiographic image? X-ray absorber and a CCD The two elements needed to convert light signals into an electrical signal while using indirect capture DR are TFT and: photo-diodes The x-ray absorber typically used in direct capture DR is a: photoconductor In reference to PSP image capture, to release the latent image, which of the following devices is scanned over the phosphor plate? Focused laser light The active element in a storage phosphor is: barium fluorohalide X-ray energy related to direct capture DR will stimulate a ______, which eventually is changed into an electrical signal scintillator Exposure latitude is to conventional radiography as _______ is to DR. dynamic range A look-up table maps: Image gray scale values Binary code is a computer language based on: ones and zeros How many bits make up four bytes? 32 The CPU is: A microprocessor found on the motherboard RAM is an acronym for ______ memory. random access RAM is: short term for open programs Memory is measured in: bytes The basic picture element is known as a: pixel All of the following are major operating systems except: hologic Each square in a matrix is called a: picture element The number of bits per pixel is known as bit: depth The size of the pixel is determined by the: matrix The efficiency of a system to convert x-ray input signal into a useful output image is known as: DQE TRUE OR FALSE : Many PACS reading stations also have image-processing capabilities. TRUE TRUE OR FALSE : Indirect capture DR converts absorbed x-ray energy into visible light. TRUE TRUE OR FALSE : DICOM is a standard that allows imaging modalities and PACS to communicate in the same language. TRUE TRUE OR FALSE : The operating system software acts as a bridge between applications and hardware. TRUE