Nuclear Medicine

Running Head : Student NameUniversity NameCourseIntroductionA gamma camera is output with 1-3 detector heads [iaea .org] . The acquisition of info is dependent on the typesetters case of examination performed Static acquisition is the collection of a authorized number of counts from an organ with the gamma camera in a fixed position . Dynamic acquisition is collection of data according to a certain time schedule . unanimous organic structure acquisition means that the gamma camera or the patient is moving resulting in an image that covers the unharmed body . Tomographic acquisition lav be done by make the camera rotate around the patient by and by reconstructive memory tomographic slices in any angle send word be presented An plectron available in agencyrn cameras is the guess to run a two-headed camera in coincide nce mode , which means that it can be used in antielectron emission mental imagery (PETIntrinsic Field UniformityVarious authors such as Sorenson et al . [1987] , archean PJ et al . [1995] and the NEMA Standards Publication of 1994 have suggested diverse protocols for performing QC running plays for intrinsic conformity (IU ) and relative sensitiveness (RS ) for a gamma-camera system . These protocols are summarized in the table belowProtocols Suggested by Various Authors for Performing Daily theatrical role rig for Gamma-Camera SystemsParameterRef . 1Ref . 2Ref . 3Ref . 4Ref . 5Ref . 6Source activity (mCi0 .8-1 .0 mCi0 .1-0 .2 mCiNo . of counts required for the flood image (for heroic FOV cameras2 x 1062 x 1063 x 106 10 ,000 cts in the primaeval pel of the image15 x 1064500 cts /cm2Counting rate (cps 20 ,00020 ,000 and 70 ,000 10 ,0005 measure UFOV8 ft 5 times UFOVImage matrix size64 x 64 x 1664 x 64 x 1664 x 64 x 16Matrix which produces pixel size with linear balance of 6 .

4 mm - 30512 x 512 x 16256 x 256Source drop off book (mL-- 0 .1 mL--0 .5 mLAcceptable uniformity ) for SPECT studies- 2 1- 4 .5 for UFOV 2 .5 for CFOV 5 Standard 3Source : tech .snmjournals .org This table summarizes the chief(prenominal) parameters of these protocols . A 99mTc pose source in a syringe was used to receive the flood image and all authors suggested a 20 differentiator window around the 140-keV gamma camera . We noticed that the primary(prenominal) differences between the various protocols wereThe ascertain rate at which the IU examine should be performed . The suggestions for this parameter varied widely from 10 K cps [Klingensm ith et .al 1998] to 70 K cps [Early et .al 1995] . It is important to go off the system at both low counting pass judgment and high counting rates to date that the uniformity the Great Compromiser acceptable [Early et .al 1995]11 million for an LFOV camera . Klingensmith et al , Sorensen et al and Early et al . suggest 2-3 M counts in a 64 x 64 matrix sizeImage matrix...If you need to get a full essay, order it on our website: BestEssayCheap.com

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