Why Is Homogeneity Of Magnets Crucial In Mri

Google Keyword Rankings for : why is homogeneity of magnets crucial in mri

1 Magnetic homogeneity - Questions and Answers in MRI
https://mriquestions.com/what-is-homogeneity.html
Magnet homogeneity directly relates to image quality and various artifacts. The types of problems associated with poor magnet homogeneity include: shading, ...
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2 Magnetic field homogeneity | Radiology Reference Article
https://radiopaedia.org/articles/magnetic-field-homogeneity?lang=us
One of the key concepts in assessing the quality of a magnet is that of magnetic field homogeneity, as it will relate to image quality and ...
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3 Magnet Homogeneity and Shimming
https://cdn0.scrvt.com/39b415fb07de4d9656c7b516d8e2d907/1800000003946047/b36c69893983/mreadings_mr-in-rt_3rd-edition_magnet-homogeneity-and-shimming_blasche_v2_1800000003946047.pdf
3 Tesla: magnetic-field homogeneity is especially important for 3T MRI since the higher field strength increases susceptibility artifacts.
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4 Optimization of static magnetic field homogeneity in the ... - NCBI
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2802018/
When a magnet is commissioned, it undergoes a shimming procedure to minimize the subject-independent background B0 inhomogeneity. This is accomplished primarily ...
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5 MRI - Homogeneity - MR-TIP: Database
https://www.mr-tip.com/serv1.php?type=db1&dbs=homogeneity
In MR, the homogeneity of the static magnetic field is an important criterion of the quality of the magnet. Homogeneity requirements for MR imaging are ...
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6 Impact of Magnetic Field Inhomogeneity on the Quality of ...
https://www.dovepress.com/impact-of-magnetic-field-inhomogeneity-on-the-quality-of-magnetic-reso-peer-reviewed-fulltext-article-RMI
Background: Magnetic field inhomogeneity in magnetic resonance imaging (MRI) is caused by the inherent properties of the main magnet, external ...
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7 Improvement of the Field Homogeneity with a Permanent ...
https://ieeexplore.ieee.org/document/4565200
Abstract: In the last few years, MRI (magnetic resonance imaging) has become one of the most useful and important radiological and diagnostic methods.
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8 MRI Magnets - IMAIOS
https://www.imaios.com/en/e-Courses/e-MRI/MRI-instrumentation-and-MRI-safety/Magnets
The main MRI magnet creates the static magnetic field, forming the basis for measurable macroscopic magnetization.
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9 Magnetic Resonance Imaging System Components
http://www.sprawls.org/mripmt/MRI02/index.html
The effect of a gradient is illustrated in Figure 2-4. When a magnet is in a “resting state,” it produces a magnetic field that is uniform or homogenous over ...
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10 Superconducting magnet designs and MRI accessibility - arXiv
https://arxiv.org/pdf/2205.08918
crucial factor in the disparity of MR density and field strength use ... Keywords: B0 homogeneity, Accessible MRI, Superconducting magnet design, Imaging in.
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11 Glossary of MRI Terms
https://www.acr.org/-/media/ACR/files/radiology-safety/MR-safety/MRGlossary.pdf
shielding can be applied to the main magnet or to the gradient magnetic fields. ... In MR, the homogeneity of the static magnetic field is an important ...
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12 ANALYTICAL PATH TO IMPROVED RF FIELD ...
https://etd.ohiolink.edu/apexprod/rws_etd/send_file/send?accession=case1237482374&disposition=attachment
1.3.1 The Main Magnet. The main magnet of an MRI system must be able to produce a spatially and temporally homogeneous magnetic field.
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13 Control of magnetic field homogeneity in movable mri ...
https://patents.google.com/patent/US20090124884
the magnet with the shimming coils being movable so as to move the imaging volume between a plurality of different positions in which imaging can be carried out ...
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14 The homogeneity of the magnetic field of the Iseult ... - CEA-Irfu
https://irfu.cea.fr/en/Phocea/Vie_des_labos/Ast/ast.php?t=fait_marquant&id_ast=4824
In order for the images produced by the future MRI to be free of distortions or artifacts, the magnetic field generated by the Iseult magnet ...
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15 Magnetic Resonance Imaging artifacts induced by ... - Metrolab
https://www.metrolab.com/mri-artifacts-due-to-field-inhomogeneity/
In MRI, magnet homogeneity is the most important characteristic, because it facilitates the correct and homogeneousA magnetic field with no or ...
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16 Portable Low-Cost MRI System Based on Permanent Magnets ...
https://www.i-mri.org/pdf/10.13104/imri.2019.23.3.179
linear gradient fields, homogeneous fields are required in a scanner, resulting in ... important to diagnoses and treatments of a wide range.
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17 MRI Acceptance Testing - E. Jackson - AAPM
https://www.aapm.org/meetings/amos2/pdf/42-11968-61508-686.pdf
homogeneity. AAPM MR TG1. When is Magnetic Shielding Required? • To constrain 5G lines, if necessary. • To minimize effects of the magnet on ...
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18 The homogeneity region (± 50 ppm limits) for NbTi magnet is ...
https://www.researchgate.net/figure/The-homogeneity-region-50-ppm-limits-for-NbTi-magnet-is-visible-together-with-its_fig1_224120019
Magnetic Resonance Imaging requires static magnetic field with a high homogeneity. Even if the main magnet is carefully designed, the experimentally determined ...
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19 magnetic field homogeneity: Topics by Science.gov
https://www.science.gov/topicpages/m/magnetic+field+homogeneity
Homogeneous magnetic fields are important requisites in modern physics ... Magnetic field homogeneity perturbations in finite Halbach dipole magnets.
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20 High Field Magnet with High Homogeneity - Wiley Online Library
https://onlinelibrary.wiley.com/doi/10.1002/9781118398159.ch7
The most important applications of high homogeneity magnets are in MRI, NMR, and other scientific instrument magnets.
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21 VRMS Homogeneity Definition: A Proposal - ISMRM
https://cds.ismrm.org/ismrm-2002/PDF3/0834.PDF
Magnetic field homogeneity is a critical parameter in MRI system performance. ... different volumes within the magnet allows the MRI system.
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22 Chapter 2 - Principles of Magnetic Resonance Imaging
https://users.fmrib.ox.ac.uk/~stuart/thesis/chapter_2/section2_6.html
An MRI scanner is made up of four components: the magnet, gradient coils, ... the most important requirements for NMR is that the field is as homogeneous a ...
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23 Introductory NMR & MRI: Video 05: Field Homogeneity
https://www.youtube.com/watch?v=o8PzreUSbVE
Jun 8, 2009
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24 Homogeneity: At the MagLab, it's about more than milk
https://nationalmaglab.org/news-events/feature-stories/homogeneity-at-the-maglab-it-s-in-more-than-milk
What is homogeneity and why is it so important to scientists? Learn how homogeneous magnets make data clearer by milking the magnetic field ...
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25 Primary Magnetic Resonance Imaging Magnets - Radiology Key
https://radiologykey.com/primary-magnetic-resonance-imaging-magnets/
The primary magnet is the heart of the MRI system. The function of the primary magnet is to provide a sustained, homogeneous B0 during the ...
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26 Tests of a Prototype for Assessing the Field Homogeneity of ...
https://misportal.jlab.org/ul/publications/downloadFile.cfm?hyperlink=JLAB-ACE-09-1084.pdf
A MRI magnet is designed in order to have a field spatial homogeneity according to imaging requirements, in our case the field variation has to be lower ...
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27 A Review on Potential Issues and Challenges in MR Imaging
https://www.hindawi.com/journals/tswj/2013/783715/
Most of the subsystems in an MRI scanner: magnet, gradient, radiofrequency front end, spectrometer, radiofrequency coils, and patient handling require some ...
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28 Approaches in cooling of resistive coil-based low-field ...
https://bmcbiomedeng.biomedcentral.com/articles/10.1186/s42490-021-00048-6
MRI systems generally employ resistive, permanent, or superconducting magnets to produce a homogeneous magnetic field that uniformly ...
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29 B0-Shimming Methodology for Affordable and Compact Low ...
https://www.frontiersin.org/articles/10.3389/fphy.2021.704566/full
MRI magnets can be constructed based on permanent neodymium-iron-boron (NdFeB) magnets in discretized arrangements, leading to substantially ...
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30 The Principles of Magnetic Resonance, and Associated ...
https://pubs.rsc.org/en/content/chapterhtml/2016/bk9781782623595-00001?isbn=978-1-78262-359-5
The role of the magnet is to polarize the nuclei to produce a net magnetization within the sample. For NMR spectroscopy and MRI, almost all magnets are ...
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31 Chapter:3 High Magnetic Fields in Chemistry, Biochemistry ...
https://www.nap.edu/read/18355/chapter/5
In medical research and clinical medicine, high-field magnets are essential components of magnetic resonance imaging (MRI) systems, which create ...
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32 Improvement of the field homogeneity with a permanent magnet
https://inis.iaea.org/search/search.aspx?orig_q=RN:21086876
In the last few years, MRI (Magnetic Resonance imaging) has become one of the most excellent and important radiological and diagnostic methods.
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33 Siemens Healthineers Magnet Technology
https://www.siemens-healthineers.com/en-uk/magnetic-resonance-imaging/siemens-magnet-technology
The field strength influences the MRI image quality, allows for certain applications and enable speed of image acquisition. The magnet types within the ...
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34 Optimizing the field homogeneity: shimming
https://molchem.science.ru.nl/nmr-manual/Optimizing%20the%20field%20homogeneity%20shimming.php
The superconducting shim coils sit within the magnet cryostat and remove gross impurities in the magnet's field. The currents are set when the magnet is first ...
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35 Magnetic Resonance Basics: Magnetic Fields, Nuclear ...
https://www.ebrain.pitt.edu/wp-content/uploads/2020/04/2020-01-10-mri-basics.pdf
criteria include field strength, temporal stability, and field homogeneity. These param- eters are affected by the magnet design. Air core magnets are made ...
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36 A low-cost and shielding-free ultra-low-field brain MRI scanner
https://www.nature.com/articles/s41467-021-27317-1
They include using resistive electromagnets that can produce a homogenous field (0.0065 T and 0.023 T), rotating Halbach permanent magnet array ...
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37 Physics of magnetic resonance imaging - Wikipedia
https://en.wikipedia.org/wiki/Physics_of_magnetic_resonance_imaging
› wiki › Physics_of_magnetic_...
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38 Evaluation of magnetic field homogeneity using in-out signal ...
https://www.sciedupress.com/journal/index.php/jbgc/article/download/9248/5941
Objective: Magnetic field (B0) homogeneity is important for the performance of a magnetic resonance imaging (MRI) system.
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39 Tunable homogeneous kG magnetic field production using ...
https://aip.scitation.org/doi/10.1063/5.0064498
The magnets are organized into four cylindrical brass holders, whose relative separation can be manipulated to achieve the desired magnetic field strength. We ...
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40 Simulation and Optimization of a Permanent Magnet for Small ...
https://www.atlantis-press.com/article/5652.pdf
important parts of the magnetic resonance imaging (MRI) system. ... intensity and poorer homogeneity compared to superconducting magnets, their essential.
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41 MRI Basics - My-MS.org
https://my-ms.org/mri_basics.htm
1), A large magnet to generate the magnetic field. · 2), Shim coils to make the magnetic field as homogeneous as possible. · 3), A radiofrequency (RF) coil to ...
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42 Computed Body Tomography with MRI Correlation
https://books.google.com/books?id=3PFZX2r3Hj0C&pg=PA82&lpg=PA82&dq=why+is+homogeneity+of+magnets+crucial+in+mri&source=bl&ots=mYP5yEE-wn&sig=ACfU3U1dXIwhPg09Xkv46Orj21DQfVUWlw&hl=en&sa=X&ved=2ahUKEwjzt9Twqcz7AhUPK1kFHQFhD8MQ6AF6BQi3AhAD
One factor affecting magnet homogeneity is the magnet design . ... Field homogeneity is an important factor to consider when evaluating an MRI system ...
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43 Magnetic Field Homogeneity Adjustment ... - Personal web page
http://www.frollo.sk/08306120.pdf
Image of selected shimming coils of the whole-body MRI imager. a shimming approach for biplanar permanent MR imaging magnets were published in [13] and [14].
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44 The Basics of MRI
https://www.cis.rit.edu/htbooks/mri/chap-9/chap-9.htm
Within the magnet are the gradient coils for producing a gradient in Bo in the X, Y, and Z directions. Within the gradient coils is the RF coil. The RF coil ...
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45 Safety Guidelines for Magnetic Resonance Imaging ... - GOV.UK
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/958486/MRI_guidance_2021-4-03c.pdf
Adequate lighting and ventilation in the magnet interior are important. Care should be taken if pillows, blankets or covers are used to ensure that they are ...
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46 Magnetism of materials: theory and practice in magnetic ...
https://insightsimaging.springeropen.com/articles/10.1186/s13244-021-01125-z
The most important chemical shift effect for MRI of the human body ... 16 and 40 ms (b–d), respectively—evident and homogeneous blooming of ...
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47 NMR spectroscopy up to 35.2 T using a series-connected ...
https://diginole.lib.fsu.edu/islandora/object/fsu:642295/datastream/PDF/download/citation.pdf
coil arrangement of the NHMFL 21.1 T NMR/MRI SC magnet. While SC NMR magnets have close to 1 ppb homogeneity, similar uniformity does not seem achievable in ...
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48 Observation of force-detected nuclear magnetic resonance in ...
https://www.pnas.org/doi/full/10.1073/pnas.0405232101
In BOOMERANG, an assembly of permanent magnets provides a homogeneous field ... which allows force detection of magnetic resonance imaging of solid samples ...
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49 Safety Considerations of 7-T MRI in Clinical Practice | Radiology
https://pubs.rsna.org/doi/full/10.1148/radiol.2019182742
Magnetohydrodynamic (ie, magnetism in electrically conductive fluids) forces can result from blood ions interacting with a magnetic field. These ...
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50 Static field homogeneity artefacts due to magnetic flux ...
https://hal.archives-ouvertes.fr/hal-03049918/document
field cooling of the coil inside a clinical MRI bore magnet of 1.5 T, ... critical current density of the HTS coil, an important ...
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51 Characteristics of Superconducting Magnets
http://www.americanmagnetics.com/charactr.php
Underspecifying the intensity and homogeneity of the magnetic field used in your experiments may seriously impact your experimental results. However, ...
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52 Magnetic resonance imaging methodology | SpringerLink
https://link.springer.com/article/10.1007/s00259-008-0938-3
Main magnet—homogeneous static magnetic field ... The magnet of a whole-body MR scanner should have a high main magnetic field strength, B 0, to ...
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53 PET-MRI: a review of challenges and solutions in ... - IOPscience
https://iopscience.iop.org/article/10.1088/0031-9155/60/4/R115
The x, y, z gradient coils are mounted concentrically within the magnet bore. The gradient coils allow the strength of the B0 field to be varied ...
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54 Evaluation of Magnetic Field Homogeneity of a Conduction ...
https://waseda.pure.elsevier.com/en/publications/evaluation-of-magnetic-field-homogeneity-of-a-conduction-cooled-r
Superconducting magnets for MRI require homogeneous stable magnetic fields. The homogeneity of the magnetic field is highly dependent on the size and ...
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55 2 MR Safety: Static Magnetic Field - Clinical MRI —
http://clinical-mri.com/wp-content/uploads/textbooks/physics_of_cmri_3rd_edition/Physics13_02.pdf
Rotational forces are strongest at the isocenter of the magnet. ... MRI requires a homogeneous magnetic field over the entire field of view and,.
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56 MRI - Mayo Clinic
https://www.mayoclinic.org/tests-procedures/mri/about/pac-20384768
Most MRI machines are large, tube-shaped magnets. When you lie inside an MRI machine, the magnetic field temporarily realigns water molecules in ...
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57 Magnetic Resonance Imaging - Europhysics News
https://www.europhysicsnews.org/articles/epn/pdf/2012/04/epn2012434p26.pdf
100 amps) for a typical MRI magnet length of 1.2 metres and a field of 1 tesla. ... homogeneous; and lastly because of the need for active.
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58 Rotatable Small Permanent Magnet Array for Ultra-Low Field ...
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0157040
A dynamic small permanent magnet array can generate multiple highly homogeneous magnetic fields required in ultra-low field nuclear magnetic ...
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59 Magnetic Resonance Imaging MRI – An Overview - DiVA Portal
https://www.diva-portal.org/smash/get/diva2:5026/FULLTEXT01.pdf
In imaging the most important thing besides measuring the signal amplitude is ... Every MRI-magnet should have an extremely homogenous magnetic field.
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60 Advances in Whole-Body MRI Magnets
https://snf.ieeecsc.org/sites/ieeecsc.org/files/ST196.pdf
Index Terms— Magnetic Resonance Imaging, MRI, superconducting magnets. I. INTRODUCTION he first practical superconducting magnets were built in.
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61 Low-Field Magnetic Resonance Imaging - Thieme Connect
https://www.thieme-connect.com/products/ejournals/pdf/10.1055/a-1123-7944.pdf
An important image quality parameter is the homogeneity of ... Low-field MRI using permanent magnets requires a particularly.
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62 Benefits of Superconducting NMR Magnets over Permanent ...
https://lab-training.com/benefits-of-superconducting-nmr-magnets-over-permanent-magnets/
A Magnet is an essential component of MMR spectrometer. Its function is essentially to expose the sample to a strong homogeneous magnetic ...
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63 Researchers propose design theory for high-homogeneity ...
https://phys.org/news/2022-11-theory-high-homogeneity-multilayer-halbach-magnet.html
This work provides a theoretical basis for the design of multilayer Halbach array magnets, maximizes homogeneity and minimizes the use of magnet ...
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64 MRI Main Field Magnets
https://mri-q.com/uploads/3/4/5/7/34572113/main_field_magnets_ismrm2006.pdf
Figure 3: four-section magnet with better homogeneity. a) field range 0-max, ... The essential parts of the mechanical structure of a cylindrical MRI magnet ...
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65 Mini-MRI Systems - Cryogenic Limited
http://www.cryogenic.co.uk/products/mini-mri-systems
Magnets for Magnetic Resonance Imaging (MRI) are required to generate a high homogeneity field over the imaging volume which remains stable in time.
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66 Superconducting Magnet Technology and Applications
https://www.intechopen.com/chapters/40026
A high homogeneous magnet system is the most important and expensive component in an MRI or NMR system. A superconducting magnet with the distribution of ...
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67 A Novel Optimal Design Method of Passive Shimming for ...
https://www.semanticscholar.org/paper/A-Novel-Optimal-Design-Method-of-Passive-Shimming-Zhang-Xie/8492b84a5005607790af6d514c99883c3fc4c8a0/figure/4
In magnetic resonance imaging (MRI) magnets, field shimming technique is, ... The homogeneity of magnetic field is one of the most critical ...
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68 Magnetic Ramping & Shimming MRI - Altima Diagnostic
https://altimadis.com/projects/ramp-and-shim-operations/
Ramping and shimming are necessary to preserve your magnet's homogeneity – the term used to describe the uniformity of a magnetic field in the center of a ...
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69 MRI in Practice Ch. 9 Flashcards - Quizlet
https://quizlet.com/57490989/mri-in-practice-ch-9-flash-cards/
Permanent magnets are said to be:, Magnetic field strength can be expressed in units of Tesla (T) or gauss (G), where:, The homogeneity of a magnetic field ...
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70 Magnetic Materials: Soft Magnets
https://www.birmingham.ac.uk/Documents/college-eps/metallurgy/research/Magnetic-Materials-Background/Magnetic-Materials-Background-10-Soft-Magnets.pdf
For AC applications the important consideration is how much energy is lost in the ... losses can be reduced by having a completely homogeneous material,.
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71 Why non-magnetic capacitors matter in medical imaging
https://www.medicaldesignandoutsourcing.com/why-non-magnetic-capacitors-matter-in-medical-imaging/
The quality of an MRI image depends on the homogeneity, or uniformity, of the magnetic field. Component material choice is paramount; ...
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72 Magnetic Resonance Imaging - Musculoskeletal Key
https://musculoskeletalkey.com/magnetic-resonance-imaging-2/
All MRI scanners need a main magnet that produces a strong, stable, and homogeneous magnetic field. MRI magnets can be classified into three ...
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73 Design of a 9.4 T Superconducting Magnet for 400 MHz ...
https://www.preprints.org/manuscript/202207.0053/v1/download
9.4 T. The magnetic field homogeneity is better than 4 ppm for 50 ... of moderate field NMR magnet is essential for industrial applications.
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74 How do you commission and implement an MRI system ... - NET
https://philipsproductcontent.blob.core.windows.net/assets/20191119/a6fa1f759b434b83b68cab0a00f1905c.pdf
We placed several electronic patient monitoring devices in the magnet rooms. An MRI-conditional anesthesia system. (Fabius MRI, Drager Medical Inc., Telford, PA) ...
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75 Stanford engineers construct an inexpensive MRI scanner: 3/01
https://news.stanford.edu/pr/01/mri321.html
Today's MRI scanners use magnets as strong as those used to pick up cars in a junkyard. Once the hydrogen atoms have lined up, they create their own magnetic ...
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76 Magnetic Resonance Imaging of the Brain and Spine
https://books.google.com/books?id=Mu7MmTXkPeAC&pg=PA9&lpg=PA9&dq=why+is+homogeneity+of+magnets+crucial+in+mri&source=bl&ots=r1NH0l8Kik&sig=ACfU3U27otdFvTy8HcpvSq-rYmF6sD7dwA&hl=en&sa=X&ved=2ahUKEwjzt9Twqcz7AhUPK1kFHQFhD8MQ6AF6BQi4AhAD
homogeneous fields . However , the region of homogeneity of the Helmholtz pair is still much too small for MRI purposes . As a result , practical magnets ...
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77 How Strong Does Your MRI Magnet Really Need to Be?
https://www.dmshealth.com/05/how-strong-does-mri-magnet-need-to-be/
If you're looking at field strength of an MRI magnet, it's important to keep in mind that channels play a big role. For example, a unit with a comparatively ...
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78 Why do MRI scanners use superconducting magnets rather ...
https://www.quora.com/Why-do-MRI-scanners-use-superconducting-magnets-rather-than-permanent-magnets
Superconducting magnets are far more stable, their fields are far more homogenous, they weigh a lot less, and they are cheaper to build for high fields. You ...
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79 Small Brain Lesion Enhancement and Gadolinium Deposition ...
https://journals.lww.com/investigativeradiology/Fulltext/2022/02000/Small_Brain_Lesion_Enhancement_and_Gadolinium.8.aspx
Contrast-enhanced (CE) magnetic resonance imaging (MRI) is crucial for detecting brain ... and homogeneity of variance was tested using Bartlett's test.
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80 High-field, high-performance magnetic resonance
https://appliedradiology.com/articles/high-field-high-performance-magnetic-resonance-technical-challenges-and-clinical-applications
Modern magnets are based on multiple solenoidal coils connected with >=2 correction coils. ... The design requires that the static magnetic field is homogeneous ...
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81 Magnetic Resonance Imaging (MRI) SAFETY
https://www.munsonhealthcare.org/media/file/MRI%20Safety%20Presentation.pdf
magnets and their attractive forces (e.g., in science classes, ... All MRI magnets have a magnetic field ... inadequate or if the MRI provides important.
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82 Clinical Low Field Strength Magnetic Resonance Imaging: A ...
https://books.google.com/books?id=mJyoCgAAQBAJ&pg=PA50&lpg=PA50&dq=why+is+homogeneity+of+magnets+crucial+in+mri&source=bl&ots=ICBt1nN9o7&sig=ACfU3U0E7a-6IYMBkcQpmgJYbnHSxOMiXg&hl=en&sa=X&ved=2ahUKEwjzt9Twqcz7AhUPK1kFHQFhD8MQ6AF6BQi8AhAD
Homogeneity is a decisive parameter for image quality. Homogeneity of the magnetic field depends on the primary structure of the magnet, in case of low ...
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83 Magnetic Resonance Imaging: Physical Principles and Sequence ...
https://books.google.com/books?id=Z45SAwAAQBAJ&pg=PA833&lpg=PA833&dq=why+is+homogeneity+of+magnets+crucial+in+mri&source=bl&ots=9N3vM_qQy-&sig=ACfU3U3L1-O4bN7fEoMQijPdWBefk3xQmw&hl=en&sa=X&ved=2ahUKEwjzt9Twqcz7AhUPK1kFHQFhD8MQ6AF6BQiqAhAD
Several important aspects of the MRI main magnet include: field strength, homogeneity, temporal stability, patient access and comfort, cost effectiveness, ...
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84 The constraint on a bead on a uniformly rotating wire in a force ...
https://kochen-und-grillen.de/the-constraint-on-a-bead-on-a-uniformly-rotating-wire-in-a-force-free-space-is.html
MRI magnet design is a complex process that needs to consider multiple requirements and constraints including target B 0 homogeneity in the desired imaging ...
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