Low-field 3-DFT MRI: conceptual, analytical, and experimental aspects.

Abstract:

:Three-dimensional Fourier transform (3-DFT) magnetic resonance imaging (MRI) offers advantages in terms of signal-to-noise (S/N) per unit of time for the case where a large number of slices is desired. This advantage is enhanced when the relaxation time, T(1 ), is short. Because time limitations in 3-DFT imaging force the use of short time intervals, TR, between excitations of a slice, lesion contrast is often undesirable at mid-and high-field strength even when the S/N is good. At low fields, where T(1) values are short, high S/N and contrast can both be achieved with 3-DFT MR images. The conceptual and analytical aspects of low-field 3-DFT MRI are presented and demonstrated at 640 G.

journal_name

IEEE Trans Med Imaging

authors

Kramer DM,Kaufman L,Rothschild P,Hale J,Wummer J,Hake KK

doi

10.1109/42.97588

subject

Has Abstract

pub_date

1991-01-01 00:00:00

pages

382-6

issue

3

eissn

0278-0062

issn

1558-254X

journal_volume

10

pub_type

杂志文章
  • The effect of image distortion on 3-D reconstruction of coronary bypass grafts from angiographic views.

    abstract::Three-dimensional (3-D) reconstructions of coronary bypass grafts performed from X-ray angiographic images may become increasingly important for the investigation of damaging mechanical stresses imposed to these vessels by the cyclic movement of the heart. Contrary to what we had experienced with coronary arteries, ap...

    journal_title:IEEE transactions on medical imaging

    pub_type: 信件

    doi:10.1109/42.875203

    authors: Dorsaz PA,Dorsaz L,Doriot PA

    更新日期:2000-07-01 00:00:00

  • The adaptive bases algorithm for intensity-based nonrigid image registration.

    abstract::Nonrigid registration of medical images is important for a number of applications such as the creation of population averages, atlas-based segmentation, or geometric correction of functional magnetic resonance imaging (fMRI) images to name a few. In recent years, a number of methods have been proposed to solve this pr...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2003.819299

    authors: Rohde GK,Aldroubi A,Dawant BM

    更新日期:2003-11-01 00:00:00

  • Detailed Evaluation of Five 3D Speckle Tracking Algorithms Using Synthetic Echocardiographic Recordings.

    abstract::A plethora of techniques for cardiac deformation imaging with 3D ultrasound, typically referred to as 3D speckle tracking techniques, are available from academia and industry. Although the benefits of single methods over alternative ones have been reported in separate publications, the intrinsic differences in the dat...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2016.2537848

    authors: Alessandrini M,Heyde B,Queiros S,Cygan S,Zontak M,Somphone O,Bernard O,Sermesant M,Delingette H,Barbosa D,De Craene M,ODonnell M,Dhooge J

    更新日期:2016-08-01 00:00:00

  • Collimator optimization for detection and quantitation tasks: application to gallium-67 imaging.

    abstract::We describe a new approach to the problem of collimator optimization in nuclear medicine; our methodology is illustrated for the challenging case of gallium-67 imaging. Collimator-design methods based on empirical rules, such as specification of an allowable level of single-septal penetration (SSP) at a fixed energy, ...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2005.857211

    authors: Moore SC,Foley Kijewski M,El Fakhri G

    更新日期:2005-10-01 00:00:00

  • Resampling of data between arbitrary grids using convolution interpolation.

    abstract::For certain medical applications resampling of data is required. In magnetic resonance tomography (MRT) or computer tomography (CT), e.g., data may be sampled on nonrectilinear grids in the Fourier domain. For the image reconstruction a convolution-interpolation algorithm, often called gridding, can be applied for res...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/42.774166

    authors: Rasche V,Proksa R,Sinkus R,Börnert P,Eggers H

    更新日期:1999-05-01 00:00:00

  • Estimating average growth trajectories in shape-space using kernel smoothing.

    abstract::In this paper, we show how a dense surface point distribution model of the human face can be computed and demonstrate the usefulness of the high-dimensional shape-space for expressing the shape changes associated with growth and aging. We show how average growth trajectories for the human face can be computed in the a...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2003.814784

    authors: Hutton TJ,Buxton BF,Hammond P,Potts HW

    更新日期:2003-06-01 00:00:00

  • An investigation of methods of pileup rejection for 2-D array detectors employed in high resolution PET.

    abstract::Two methods of rejecting pileup events in 2-D array detectors used in positron emission tomography (PET) are investigated. Since the methods are based on different physical properties, they were investigated separately and in combination. Method one is based on the fact that valid events in the 2-D array detector occu...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/42.79481

    authors: Germano G,Hoffman EJ

    更新日期:1991-01-01 00:00:00

  • An image-guided planning system for endosseous oral implants.

    abstract::A preoperative planning system for oral implant surgery was developed which takes as input computed tomographies (CT's) of the jaws. Two-dimensional (2-D) reslices of these axial CT slices orthogonal to a curve following the jaw arch are computed and shown together with three-dimensional (3-D) surface rendered models ...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/42.736056

    authors: Verstreken K,Van Cleynenbreugel J,Martens K,Marchal G,van Steenberghe D,Suetens P

    更新日期:1998-10-01 00:00:00

  • Endoscopic video manifolds for targeted optical biopsy.

    abstract::Gastro-intestinal (GI) endoscopy is a widely used clinical procedure for screening and surveillance of digestive tract diseases ranging from Barrett's Oesophagus to oesophageal cancer. Current surveillance protocol consists of periodic endoscopic examinations performed in 3-4 month intervals including expert's visual ...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2011.2174252

    authors: Atasoy S,Mateus D,Meining A,Yang GZ,Navab N

    更新日期:2012-03-01 00:00:00

  • Fast catheter segmentation from echocardiographic sequences based on segmentation from corresponding X-ray fluoroscopy for cardiac catheterization interventions.

    abstract::Echocardiography is a potential alternative to X-ray fluoroscopy in cardiac catheterization given its richness in soft tissue information and its lack of ionizing radiation. However, its small field of view and acoustic artifacts make direct automatic segmentation of the catheters very challenging. In this study, a fa...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2014.2360988

    authors: Wu X,Housden J,Ma Y,Razavi B,Rhode K,Rueckert D

    更新日期:2015-04-01 00:00:00

  • Multislice radio-frequency current density imaging.

    abstract::Radio-frequency current density imaging (RF-CDI) is an imaging technique that noninvasively measures current density distribution at the Larmor frequency utilizing magnetic resonance imaging (MRI). Previously implemented RF-CDI techniques were only able to image a single slice transverse to the static magnetic field B...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2008.2012161

    authors: Wang D,DeMonte TP,Ma W,Joy ML,Nachman AI

    更新日期:2009-07-01 00:00:00

  • A row-action alternative to the EM algorithm for maximizing likelihood in emission tomography.

    abstract::The maximum likelihood (ML) approach to estimating the radioactive distribution in the body cross section has become very popular among researchers in emission computed tomography (ECT) since it has been shown to provide very good images compared to those produced with the conventional filtered backprojection (FBP) al...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/42.538946

    authors: Browne J,de Pierro AB

    更新日期:1996-01-01 00:00:00

  • Graph-based IVUS segmentation with efficient computer-aided refinement.

    abstract::A new graph-based approach for segmentation of luminal and external elastic lamina (EEL) surface of coronary vessels in gated 20 MHz intravascular ultrasound (IVUS) image sequences (volumes) is presented. The approach consists of a fully automated segmentation stage ("new automated" or NA) and a user-guided computer-a...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2013.2260763

    authors: Sun S,Sonka M,Beichel RR

    更新日期:2013-08-01 00:00:00

  • Spatially adaptive mixture modeling for analysis of FMRI time series.

    abstract::Within-subject analysis in fMRI essentially addresses two problems, the detection of brain regions eliciting evoked activity and the estimation of the underlying dynamics. In Makni et aL, 2005 and Makni et aL, 2008, a detection-estimation framework has been proposed to tackle these problems jointly, since they are con...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2010.2042064

    authors: Vincent T,Risser L,Ciuciu P

    更新日期:2010-04-01 00:00:00

  • BICAV: a block-iterative parallel algorithm for sparse systems with pixel-related weighting.

    abstract::Component averaging (CAV) was recently introduced by Censor, Gordon, and Gordon as a new iterative parallel technique suitable for large and sparse unstructured systems of linear equations. Based on earlier work of Byrne and Censor, it uses diagonal weighting matrices, with pixel-related weights determined by the spar...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/42.959302

    authors: Censor Y,Gordon D,Gordon R

    更新日期:2001-10-01 00:00:00

  • Multi-scale tubular structure detection in ultrasound imaging.

    abstract::We propose a novel, physics-based method for detecting multi-scale tubular features in ultrasound images. The detector is based on a Hessian-matrix eigenvalue method, but unlike previous work, our detector is guided by an optimal model of vessel-like structures with respect to the ultrasound-image formation process. O...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2014.2340912

    authors: Hennersperger C,Baust M,Waelkens P,Karamalis A,Ahmadi SA,Navab N

    更新日期:2015-01-01 00:00:00

  • Automated characterization of breast lesions imaged with an ultrafast DCE-MR protocol.

    abstract::Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) of the breast has become an invaluable tool in the clinical work-up of patients suspected of having breast carcinoma. The purpose of this study is to introduce novel features extracted from the kinetics of contrast agent uptake imaged by a short (100 s) vi...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2013.2281984

    authors: Platel B,Mus R,Welte T,Karssemeijer N,Mann R

    更新日期:2014-02-01 00:00:00

  • Electrical impedance tomography of translationally uniform cylindrical objects with general cross-sectional boundaries.

    abstract::An algorithm is developed for electrical impedance tomography (EIT) of finite cylinders with general cross-sectional boundaries and translationally uniform conductivity distributions. The electrodes for data collection are assumed to be placed around a cross-sectional plane; therefore, the axial variation of the bound...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/42.52982

    authors: Ider YZ,Gencer NG,Atalar E,Tosun H

    更新日期:1990-01-01 00:00:00

  • Regularized field map estimation in MRI.

    abstract::In fast magnetic resonance (MR) imaging with long readout times, such as echo-planar imaging (EPI) and spiral scans, it is important to correct for the effects of field inhomogeneity to reduce image distortion and blurring. Such corrections require an accurate field map, a map of the off-resonance frequency at each vo...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2008.923956

    authors: Funai AK,Fessler JA,Yeo DT,Olafsson VT,Noll DC

    更新日期:2008-10-01 00:00:00

  • Spatio-temporal nonrigid registration for ultrasound cardiac motion estimation.

    abstract::We propose a new spatio-temporal elastic registration algorithm for motion reconstruction from a series of images. The specific application is to estimate displacement fields from two-dimensional ultrasound sequences of the heart. The basic idea is to find a spatio-temporal deformation field that effectively compensat...

    journal_title:IEEE transactions on medical imaging

    pub_type: 临床试验,杂志文章

    doi:10.1109/TMI.2005.852050

    authors: Ledesma-Carbayo MJ,Kybic J,Desco M,Santos A,Sühling M,Hunziker P,Unser M

    更新日期:2005-09-01 00:00:00

  • Multi-TI Arterial Spin Labeling MRI with Variable TR and Bolus Duration for Cerebral Blood Flow and Arterial Transit Time Mapping.

    abstract::Arterial spin labeling (ASL) is an MRI perfusion imaging method from which quantitative cerebral blood flow (CBF) can be calculated. We present a multi-TI ASL method (multi-TI integrated ASL) in which variable post-labeling delays and variable TRs are used to improve the estimation of arterial transit time (ATT) and C...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2015.2395257

    authors: Johnston ME,Lu K,Maldjian JA,Jung Y

    更新日期:2015-06-01 00:00:00

  • Ultrasound imaging and identification of microcalcification clusters by correlation of scatter from multiple angles.

    abstract::Various types of malignant and benign breast tumors are associated with clusters of calcifications with grain sizes 0.1 to a few mm spread out over volumes of a few cc. A series of phantoms containing calcium carbonate grains embedded in a gelatin mixture were made and the ultrasound scattering patterns were measured ...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.1984.4307668

    authors: Perez-Mendez V,Wiedenbeck P,Davis P,Tzeng CJ

    更新日期:1984-01-01 00:00:00

  • Establishment of an Automated Algorithm Utilizing Optical Coherence Tomography and Micro-Computed Tomography Imaging to Reconstruct the 3-D Deformed Stent Geometry.

    abstract::Percutaneous coronary intervention (PCI) is the prevalent treatment for coronary artery disease, with hundreds of thousands of stents implanted annually. Computational studies have demonstrated the role of biomechanics in the failure of vascular stents, but clinical studies is this area are limited by a lack of unders...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2018.2870714

    authors: Elliott MR,Kim D,Molony DS,Morris L,Samady H,Joshi S,Timmins LH

    更新日期:2019-03-01 00:00:00

  • Improved intrinsic motion detection using time-of-flight PET.

    abstract::Intrinsic or data-driven respiratory and cardiac motion detection often track the center-of-mass (COM) change in PET data to derive a motion gating signal. The effectiveness of this method depends on the contrast of the moving target to the relatively stationary background. The stationary background leads to a reduced...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2015.2423976

    authors: Xu J,Tsui BM

    更新日期:2015-10-01 00:00:00

  • Validation of nonrigid image registration using finite-element methods: application to breast MR images.

    abstract::This paper presents a novel method for validation of nonrigid medical image registration. This method is based on the simulation of physically plausible, biomechanical tissue deformations using finite-element methods. Applying a range of displacements to finite-element models of different patient anatomies generates m...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2002.808367

    authors: Schnabel JA,Tanner C,Castellano-Smith AD,Degenhard A,Leach MO,Hose DR,Hill DL,Hawkes DJ

    更新日期:2003-02-01 00:00:00

  • Image-Based Investigation of Human in Vivo Myofibre Strain.

    abstract::Cardiac myofibre deformation is an important determinant of the mechanical function of the heart. Quantification of myofibre strain relies on 3D measurements of ventricular wall motion interpreted with respect to the tissue microstructure. In this study, we estimated in vivo myofibre strain using 3D structural and fun...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2016.2580573

    authors: Wang VY,Casta C,Zhu YM,Cowan BR,Croisille P,Young AA,Clarysse P,Nash MP

    更新日期:2016-11-01 00:00:00

  • Patch-Based Output Space Adversarial Learning for Joint Optic Disc and Cup Segmentation.

    abstract::Glaucoma is a leading cause of irreversible blindness. Accurate segmentation of the optic disc (OD) and optic cup (OC) from fundus images is beneficial to glaucoma screening and diagnosis. Recently, convolutional neural networks demonstrate promising progress in the joint OD and OC segmentation. However, affected by t...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2019.2899910

    authors: Wang S,Yu L,Yang X,Fu CW,Heng PA

    更新日期:2019-11-01 00:00:00

  • Neuro-fuzzy systems for computer-aided myocardial viability assessment.

    abstract::This paper describes a multimodality framework for computer-aided myocardial viability assessment based on neuro-fuzzy techniques. The proposed approach distinguishes two main levels: the modality-independent inference level and the modality-dependent application level. This two-level distinction releases the hard con...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/42.974925

    authors: Behloul F,Lelieveldt BP,Boudraa A,Janier MF,Revel D,Reiber JH

    更新日期:2001-12-01 00:00:00

  • Investigation of Axial and Angular Sampling in Multi-Detector Pinhole-SPECT Brain Imaging.

    abstract::We designed a dedicated multi-detector multi-pinhole brain SPECT scanner to generate images of higher quality compared to general-purpose systems. The system, AdaptiSPECT-C, is intended to adapt its sensitivity-resolution trade-off by varying its aperture configurations allowing both high-sensitivity dynamic and high-...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2020.3015079

    authors: Zeraatkar N,Kalluri KS,Auer B,Konik A,Fromme TJ,Furenlid LR,Kuo PH,King MA

    更新日期:2020-12-01 00:00:00

  • Displacement estimation with co-registered ultrasound for image guided neurosurgery: a quantitative in vivo porcine study.

    abstract::Brain shift during open cranial surgery presents a challenge for maintaining registration with image-guidance systems. Ultrasound (US) is a convenient intraoperative imaging modality that may be a useful tool in detecting tissue shift and updating preoperative images based on intraoperative measurements of brain defor...

    journal_title:IEEE transactions on medical imaging

    pub_type: 杂志文章

    doi:10.1109/TMI.2003.819293

    authors: Lunn KE,Paulsen KD,Roberts DW,Kennedy FE,Hartov A,West JD

    更新日期:2003-11-01 00:00:00