Mark D. Hindal
Mayo Clinic
Communications systemImaging phantomDosimeterShieldsOpticsPhysicsBiomedical engineeringShieldSignal-to-noise ratio (imaging)Field of viewLead (electronics)RadiationPixelOptical transfer functionWorkflowAttenuationGridProjection (set theory)ApertureMaterials scienceHard copyFluoroscopyAnti-scatter gridX-ray tubeRadiation protectionEye protectionDictationCollimatorEyewearAngiographySpeech recognitionRight femoral arteryFocal Spot SizeTechnical noteRadiation shieldingNuclear medicineRadiation shieldUpper bodyDose reductionDevice useInvasive cardiologyMagnificationSimulationMultimediaQuality of serviceImage qualityWorkstationResolution (electron density)MedicineFeature (computer vision)Image sensorDetector
7Publications
3H-index
88Citations
Publications 7
Newest
#1Kenneth A. Fetterly (Mayo Clinic)H-Index: 18
#2Beth A. Schueler (Mayo Clinic)H-Index: 32
Last. Daniel L. Miller (Mayo Clinic)H-Index: 32
view all 4 authors...
The purpose of this work was to assess technical performance of a prototype high-ratio (r29), 80 line cm-1grid for imaging conditions which mimic those for adult cardiovascular angiography. The standard equipment r15, 80 line cm-1grid was used as a reference. Plastic Water®LR phantoms with thickness in the range 20-44 cm were used to simulate adult patient attenuation and scatter. Grids were tested using x-ray field of view 20 and 25 cm and x-ray source to detector distance (SID) 107 and 120 cm....
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#1Daniel L. Miller (Mayo Clinic)H-Index: 32
#2Beth A. Schueler (Mayo Clinic)H-Index: 32
Last. Mark D. Hindal (Mayo Clinic)H-Index: 3
view all 4 authors...
The effectiveness of commercially available radiation protection devices for operators performing fluoroscopically guided interventional procedures is variable, and information regarding device use...
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#1Ashley T. Tao (Mayo Clinic)H-Index: 3
#2Daniel L. Miller (Mayo Clinic)H-Index: 32
Last. Kenneth A. Fetterly (Mayo Clinic)H-Index: 18
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PURPOSE: While scatter from the patient is assumed to be the primary source of occupational radiation dose associated with fluoroscopically guided interventional procedures, the potential contribution of scatter from the x-ray collimator assembly is unknown. The purpose of this work was to survey clinical x-ray angiography systems to assess the potential contribution of collimator assembly scatter on occupational radiation dose. METHODS: Experimental methods were designed to measure the relative...
1 CitationsSource
#1Kenneth A. Fetterly (Mayo Clinic)H-Index: 18
#2Dixon J. Magnuson (Mayo Clinic)H-Index: 4
Last. Verghese Mathew (Mayo Clinic)H-Index: 32
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Objectives This study sought to measure the protection from scatter radiation offered to the primary physician by a variety of available shields and to provide best practice guidelines for shield use during invasive cardiology procedures. Background It is accepted that exposure to radiation includes a predicted increase in cancer risk. In the cardiac interventional laboratories, radiation shields are widely available; however, proper use of the shields to optimize protection during cardiac inter...
70 CitationsSource
#1Kenneth A. Fetterly (Mayo Clinic)H-Index: 18
#2Dixon J. Magnuson (Mayo Clinic)H-Index: 4
Last. Beth A. Schueler (Mayo Clinic)H-Index: 32
view all 4 authors...
Purpose: The resolution of x‐ray fluoroscopyimages is dependent on detector characteristics and x‐ray focal spot penumbra blur. The purpose of this work was to investigate the influence of focal spot size and geometric magnification (M) on the modulation transfer function(MTF) of flat panel fluoroscopic imagingsystems.Method and Materials: The MTF of was measured for two x‐ray detectors, three different focal spot sizes, and M in the range 1.04 to 1.70. The MTF was measured both parallel and per...
1 CitationsSource
#1Beth A. Schueler (Mayo Clinic)H-Index: 32
#2Glenn M. Sturchio (Mayo Clinic)H-Index: 4
Last. Dixon J. Magnuson (Mayo Clinic)H-Index: 4
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Purpose: Leaded eyewear is commonly recommended for physicians routinely performing interventional fluoroscopy procedures. However, radiation‐attenuating glasses and goggles can be heavy and uncomfortable. Recently, several new lightweight eyewear designs have become available. Two such designs were investigated to determine how well they are able to reduce eye dose under clinical conditions. Materials and Methods: The eye dose was measured using OSLnanodot dosimeters positioned on a Rando head ...
3 CitationsSource
#1William Pavlicek (Mayo Clinic)H-Index: 26
#2John R. Muhm (Mayo Clinic)H-Index: 19
Last. Mark D. Hindal (Mayo Clinic)H-Index: 3
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Speech recognition reporting for chest examinations was introduced and tightly integrated with a Radiology Information System (RIS) and a Picture Archiving and Communications System (PACS). A feature of this integration was the unique one-to-one coupling of the workstation displayed case and the reporting via speech recognition for thatand only that particular examination and patient. The utility of the resulting, wholly integrated electronic environment was then compared with that of the previo...
13 CitationsSource