Literature search results

14104 articles were found.

The following terms were included: Frequenz, frequency, 頻度、周波数

• 2020, Stijnman PRS, Tokaya JP, van Gemert J, Luijten PR, Pluim JPW, Brink WM, Remis RF, van den Berg CAT, Raaijmakers AJE
  Accelerating implant RF safety assessment using a low-rank inverse update method [tech./dosim.]
  Magn Reson Med 83 (5): 1796-1809
• 2020, Özen AC, Silemek B, Lottner T, Atalar E, Bock M
  MR safety watchdog for active catheters: Wireless impedance control with real-time feedback [tech./dosim.]
  Magn Reson Med 84 (2): 1048-1060
• 2019, Özen AC, Lottner T, Bock M
  Safety of active catheters in MRI: Termination impedance versus RF-induced heating [tech./dosim.]
  Magn Reson Med 81 (2): 1412-1423
• 2018, Wen J, Sukstanskii AL, Yablonskiy DA
  Phase-sensitive B1 mapping: Effects of relaxation and RF spoiling [tech./dosim.]
  Magn Reson Med 80 (1): 101-111
• 2018, Huss A, Schaap K, Kromhout H
  A survey on abnormal uterine bleeding among radiographers with frequent MRI exposure using intrauterine contraceptive devices [epidem.]
  Magn Reson Med 79 (2): 1083-1089
• 2017, Golestanirad L, Angelone LM, Iacono MI, Katnani H, Wald LL, Bonmassar G
  Local SAR near deep brain stimulation (DBS) electrodes at 64 and 127 MHz: A simulation study of the effect of extracranial loops [tech./dosim.]
  Magn Reson Med 78 (4): 1558-1565
• 2017, Liberman G, Frydman L
  Reducing SAR requirements in multislice volumetric single-shot spatiotemporal MRI by two-dimensional RF pulses [tech./dosim.]
  Magn Reson Med 77 (5): 1959-1965
• 2016, Özen AC, Traser L, Echternach M, Dadakova T, Burdumy M, Richter B, Bock M
  Ensuring safety and functionality of electroglottography measurements during dynamic pulmonary MRI [dev./impl.]
  Magn Reson Med 76 (5): 1629-1635
• 2016, Simonis FF, Petersen ET, Lagendijk JJ, van den Berg CA
  Feasibility of measuring thermoregulation during RF heating of the human calf muscle using MR based methods [tech./dosim.]
  Magn Reson Med 75 (4): 1743-1751
• 2016, Zhang J, Idiyatullin D, Corum CA, Kobayashi N, Garwood M
  Gradient-modulated SWIFT [tech./dosim.]
  Magn Reson Med 75 (2): 537-546
• 2015, Zilberti L, Bottauscio O, Chiampi M, Hand J, Lopez HS, Bruhl R, Crozier S
  Numerical prediction of temperature elevation induced around metallic hip prostheses by traditional, split, and uniplanar gradient coils [dev./impl.]
  Magn Reson Med 74 (1): 272-279
• 2015, van Nierop LE, Slottje P, van Zandvoort M, Kromhout H
  Simultaneous exposure to MRI-related static and low-frequency movement-induced time-varying magnetic fields affects neurocognitive performance: A double-blind randomized crossover study [med./bio.]
  Magn Reson Med 74 (3): 840-849
• 2015, van Nierop LE, Christopher de Vries Y, Slottje P, Kromhout H
  Does assessment of personal exposure matter during experimental neurocognitive testing in MRI-related magnetic fields? [tech./dosim.]
  Magn Reson Med 73 (2): 765-772
• 2014, Oh S, Ryu YC, Carluccio G, Sica CT, Collins CM
  Measurement of SAR-induced temperature increase in a phantom and in vivo with comparison to numerical simulation [tech./dosim.]
  Magn Reson Med 71 (5): 1923-1931
• 2014, Shrivastava D, Utecht L, Tian J, Hughes J, Vaughan JT
  In vivo radiofrequency heating in swine in a 3T (123.2-MHz) birdcage whole body coil [tech./dosim.]
  Magn Reson Med 72 (4): 1141-1150
• 2014, Ipek O, Raaijmakers AJ, Lagendijk JJ, Luijten PR, van den Berg CA
  Intersubject local SAR variation for 7T prostate MR imaging with an eight-channel single-side adapted dipole antenna array [tech./dosim.]
  Magn Reson Med 71 (4): 1559-1567
• 2013, Liu W, Kao CP, Collins CM, Smith MB, Yang QX
  On consideration of radiated power in RF field simulations for MRI [tech./dosim.]
  Magn Reson Med 69 (1): 290-294
• 2012, Powell J, Papadaki A, Hand J, Hart A, McRobbie D
  Numerical simulation of SAR induced around Co-Cr-Mo hip prostheses in situ exposed to RF fields associated with 1.5 and 3 T MRI body coils [tech./dosim.]
  Magn Reson Med 68 (3): 960-968
• 2011, Eryaman Y, Akin B, Atalar E
  Reduction of implant RF heating through modification of transmit coil electric field [tech./dosim.]
  Magn Reson Med 65 (5): 1305-1313
• 2011, Nordbeck P, Ritter O, Weiss I, Warmuth M, Gensler D, Burkard N, Herold V, Jakob PM, Ertl G, Ladd ME, Quick HH, Bauer WR
  Impact of imaging landmark on the risk of MRI-related heating near implanted medical devices like cardiac pacemaker leads [dev./impl.]
  Magn Reson Med 65 (1): 44-50
• 2010, Overall WR, Pauly JM, Stang PP, Scott GC
  Ensuring safety of implanted devices under MRI using reversed RF polarization [tech./dosim.]
  Magn Reson Med 64 (3): 823-833
• 2010, Brunner DO, Pruessmann KP
  Optimal design of multiple-channel RF pulses under strict power and SAR constraints [tech./dosim.]
  Magn Reson Med 63 (5): 1280-1291
• 2009, Shrivastava D, Hanson T, Kulesa J, DelaBarre L, Iaizzo P, Vaughan JT
  Radio frequency heating at 9.4T (400.2 MHz): In vivo thermoregulatory temperature response in swine [med./bio.]
  Magn Reson Med 62 (4): 888-895
• 2005, McLean MA, Simister RJ, Barker GJ, Duncan JS
  Magnetization transfer effect on human brain metabolites and macromolecules [med./bio.]
  Magn Reson Med 54 (5): 1281-1285
• 2005, Qiu B, El-Sharkawy AM, Paliwal V, Karmarkar P, Gao F, Atalar E, Yang X
  Simultaneous radiofrequency (RF) heating and magnetic resonance (MR) thermal mapping using an intravascular MR imaging/RF heating system [tech./dosim.]
  Magn Reson Med 54 (1): 226-230
• 2002, Zhao H, Crozier S, Liu F
  Finite difference time domain (FDTD) method for modeling the effect of switched gradients on the human body in MRI [tech./dosim.]
  Magn Reson Med 48 (6): 1037-1042
• 2001, Alecci M, Collins CM, Smith MB, Jezzard P
  Radio frequency magnetic field mapping of a 3 Tesla birdcage coil: experimental and theoretical dependence on sample properties [tech./dosim.]
  Magn Reson Med 46 (2): 379-385
• 1999, Gandhi OP, Chen XB
  Specific absorption rates and induced current densities for an anatomy-based model of the human for exposure to time-varying magnetic fields of MRI [tech./dosim.]
  Magn Reson Med 41 (4): 816-823
• 1997, Jin J, Chen J
  On the SAR and field inhomogeneity of birdcage coils loaded with the human head [tech./dosim.]
  Magn Reson Med 38 (6): 953-963
• 1996, Li S, Dardzinski BJ, Collins CM, Yang QX, Smith MB
  Three-dimensional mapping of the static magnetic field inside the human head [tech./dosim.]
  Magn Reson Med 36 (5): 705-14
• 1995, Li S, Williams GD, Frisk TA, Arnold BW, Smith MB
  A computer simulation of the static magnetic field distribution in the human head [tech./dosim.]
  Magn Reson Med 34 (2): 268-275
• 1993, Mansfield P, Harvey PR
  Limits to neural stimulation in echo-planar imaging [tech./dosim.]
  Magn Reson Med 29 (6): 746-758
• 1990, Cohen MS, Weisskoff RM, Rzedzian RR, Kantor HL
  Sensory stimulation by time-varying magnetic fields [med./bio.]
  Magn Reson Med 14 (2): 409-414
• 2023, Parsa J, Webb A
  Specific absorption rate (SAR) simulations for low-field (< 0.1 T) MRI systems [temp.]
  Magn Reson Mater Phy (MAGMA) [in press]
• 2020, Kozlov M, Horner M, Kainz W, Weiskopf N, Möller HE
  Modeling radio-frequency energy-induced heating due to the presence of transcranial electric stimulation setup at 3T [dev./impl.]
  Magn Reson Mater Phy (MAGMA) 33 (6): 793-807
• 2018, Barbier T, Aissani S, Weber N, Pasquier C, Felblinger J
  A novel MR-compatible sensor to assess active medical device safety: stimulation monitoring, rectified radio frequency pulses, and gradient-induced voltage measurements [tech./dosim.]
  Magn Reson Mater Phy (MAGMA) 31 (5): 677-688
• 2016, Winter L, Niendorf T
  Electrodynamics and radiofrequency antenna concepts for human magnetic resonance at 23.5 T (1 GHz) and beyond [tech./dosim.]
  Magn Reson Mater Phy (MAGMA) 29 (3): 641-56
• 2015, Mattei E, Censi F, Triventi M, Napolitano A, Genovese E, Cannata V, Calcagnini G
  An optically coupled sensor for the measurement of currents induced by MRI gradient fields into endocardial leads [tech./dosim.]
  Magn Reson Mater Phy (MAGMA) 28 (3): 291-303
• 2013, Childs AS, Malik SJ, O'Regan DP, Hajnal JV
  Impact of number of channels on RF shimming at 3T [tech./dosim.]
  Magn Reson Mater Phy (MAGMA) 26 (4): 401-410
• 2009, No authors listed
  [Non-specific symptoms attributed to environmental electromagnetic load and the psychological background of symptom production] [foreign-language]
  Magyar Pszichológiai Szemle 64 (3): 553-571
• 2018, Gilson RC, Deissler RJ, Bihary RF, Condit WC, Thompson ME, Blankenship D, Grimberg KO, Brown RW, Grimberg BT
  Growth of Plasmodium falciparum in response to a rotating magnetic field [med./bio.]
  Malar J 17 (1): 190
• 2022, Nurhidayat L, Fajar I, Yati A, Prinanda HH, Irfan M, Afina D, Fadlurrahman AG, Antara NY, Alamsyah F, Taruno WP, Pratiwi R
  Evaluation of Static Electric Field Exposure on Histopathological Structure and Function of Kidney and Liver in DMBA- Induced RAT (Rattus norvegicus Berkenhout, 1769) [med./bio.]
  Malays J Fundam Appl Sci 18 (6): 703-713
• 2021, Krylov VV, Chebotareva YV, Izyumov YG
  Delayed consequences of the influence of hypomagnetic field on roach (Rutilus rutilus) embryos [med./bio.]
  Mar Freshw Res 72 (8): 1125-1131
• 2021, Jakubowska M, Greszkiewicz M, Fey DP, Otremba Z, Urban-Malinga B, Andrulewicz E
  Effects of magnetic fields related to submarine power cables on the behaviour of larval rainbow trout (Oncorhynchus mykiss) [med./bio.]
  Mar Freshw Res 72 (8): 1196-1207
• 2020, Newton KC, Kajiura SM
  The yellow stingray (Urobatis jamaicensis) can discriminate the geomagnetic cues necessary for a bicoordinate magnetic map [med./bio.]
  Mar Biol 167 (10): 151
• 2020, Albert L, Deschamps F, Jolivet A, Olivier F, Chauvaud L, Chauvaud S
  A current synthesis on the effects of electric and magnetic fields emitted by submarine power cables on invertebrates [basics]
  Mar Environ Res 159: 104958
• 2020, Nyqvist D, Durif C, Johnsen MG, De Jong K, Forland TN, Sivle LD
  [details] Electric and magnetic senses in marine animals, and potential behavioral effects of electromagnetic surveys [review]
  Mar Environ Res 155: 104888
• 2019, Jakubowska M, Urban-Malinga B, Otremba Z, Andrulewicz E
  [details] Effect of low frequency electromagnetic field on the behavior and bioenergetics of the polychaete Hediste diversicolor [med./bio.]
  Mar Environ Res 150: 104766
• 2000, Ushijima K, Yamada Y, Yano T, Tashiro M
  [An Electrosurgical Burn Possibly Caused by Radio-Frequency Leakage Current Through a Stainless Forceps] [foreign-language]
  Masui 49 (8): 909-912
• 2022, Wei B, Wang S, Jiang C, Jiang B, He H, Liu M
  Matrix Metamaterial Shielding Design for Wireless Power Transfer to Control the Magnetic Field [tech./dosim.]
  Materials 15 (7): 2678