abstract：:Prostate cancer (PCa) recurrences are often predicted by assessing the status of surgical margins (SM)- positive surgical margins (PSM) increase the chances of biochemical recurrence by 2-4 times which may lead to PCa recurrence. To this end, an electrical impedance acquisition system with a microendoscopic probe was ...

journal_title：IEEE transactions on medical imaging

authors： Khan S,Mahara A,Hyams ES,Schned AR,Halter RJ

更新日期：2016-12-01 00:00:00

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

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

abstract：:Ultrasound (US) imaging is the primary imaging modality for pediatric hydronephrosis, which manifests as the dilation of the renal collecting system (CS). In this paper, we present a new framework for the segmentation of renal structures, kidney and CS, from 3DUS scans. First, the kidney is segmented using an active s...

journal_title：IEEE transactions on medical imaging

authors： Cerrolaza JJ,Safdar N,Biggs E,Jago J,Peters CA,Linguraru MG

更新日期：2016-11-01 00:00:00

abstract：:Magnetic particle imaging (MPI) is able to provide high temporal and good spatial resolution, high signal to noise ratio and sensitivity. Furthermore, it is a truly quantitative method as its signal strength is proportional to the concentration of its tracer, superparamagnetic iron oxide nanoparticles (SPIOs), over a ...

journal_title：IEEE transactions on medical imaging

authors： Haegele J,Panagiotopoulos N,Cremers S,Rahmer J,Franke J,Duschka RL,Vaalma S,Heidenreich M,Borgert J,Borm P,Barkhausen J,Vogt FM

更新日期：2016-10-01 00:00:00

abstract：:Electrical conductivity and permittivity of biological tissues are important diagnostic parameters and are useful for calculating subject-specific specific absorption rate distribution. On the other hand, water proton density also has clinical relevance for diagnosis purposes. These two kinds of tissue properties are ...

journal_title：IEEE transactions on medical imaging

authors： Jiaen Liu,Van de Moortele PF,Xiaotong Zhang,Yicun Wang,Bin He

更新日期：2016-09-01 00:00:00

abstract：:The reconstruction of MR quantitative susceptibility mapping (QSM) from local phase measurements is an ill posed inverse problem and different regularization strategies incorporating a priori information extracted from magnitude and phase images have been proposed. However, the anatomy observed in magnitude and phase ...

journal_title：IEEE transactions on medical imaging

authors： Bao L,Li X,Cai C,Chen Z,van Zijl PC

更新日期：2016-09-01 00:00:00

abstract：:Segmentation of the wrist bones in CT images has been frequently used in different clinical applications including arthritis evaluation, bone age assessment and image-guided interventions. The major challenges include non-uniformity and spongy textures of the bone tissue as well as narrow inter-bone spaces. In this wo...

journal_title：IEEE transactions on medical imaging

authors： Anas EM,Rasoulian A,Seitel A,Darras K,Wilson D,John PS,Pichora D,Mousavi P,Rohling R,Abolmaesumi P

更新日期：2016-08-01 00:00:00

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

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

abstract：:The purpose of this study is to develop and test a new computerized model for predicting near-term breast cancer risk based on quantitative assessment of bilateral mammographic image feature variations in a series of negative full-field digital mammography (FFDM) images. The retrospective dataset included series of fo...

journal_title：IEEE transactions on medical imaging

authors： Tan M,Zheng B,Leader JK,Gur D

更新日期：2016-07-01 00:00:00

abstract：:High-frame-rate ultrasonography based on coherent compounding of unfocused beams can potentially transform the assessment of cardiac function. As it requires successive waves to be combined coherently, this approach is sensitive to high-velocity tissue motion. We investigated coherent compounding of tilted diverging w...

journal_title：IEEE transactions on medical imaging

authors： Poree J,Posada D,Hodzic A,Tournoux F,Cloutier G,Garcia D

更新日期：2016-07-01 00:00:00

abstract：:Image textures in computed tomography colonography (CTC) have great potential for differentiating non-neoplastic from neoplastic polyps and thus can advance the current CTC detection-only paradigm to a new level with diagnostic capability. However, image textures are frequently compromised, particularly in low-dose CT...

journal_title：IEEE transactions on medical imaging

authors： Hu Y,Liang Z,Song B,Han H,Pickhardt PJ,Zhu W,Duan C,Zhang H,Barish MA,Lascarides CE

更新日期：2016-06-01 00:00:00

abstract：:Mammographic risk scoring has commonly been automated by extracting a set of handcrafted features from mammograms, and relating the responses directly or indirectly to breast cancer risk. We present a method that learns a feature hierarchy from unlabeled data. When the learned features are used as the input to a simpl...

journal_title：IEEE transactions on medical imaging

authors： Kallenberg M,Petersen K,Nielsen M,Ng AY,Pengfei Diao,Igel C,Vachon CM,Holland K,Winkel RR,Karssemeijer N,Lillholm M

更新日期：2016-05-01 00:00:00

abstract：:The development of an automatic telemedicine system for computer-aided screening and grading of diabetic retinopathy depends on reliable detection of retinal lesions in fundus images. In this paper, a novel method for automatic detection of both microaneurysms and hemorrhages in color fundus images is described and va...

journal_title：IEEE transactions on medical imaging

authors： Seoud L,Hurtut T,Chelbi J,Cheriet F,Langlois JM

更新日期：2016-04-01 00:00:00

abstract：:In this paper we propose a framework for using duplex Doppler ultrasound systems. These type of systems need to interleave the acquisition and display of a B-mode image and of the pulsed Doppler spectrogram. In a recent study (Richy , 2013), we have shown that compressed sensing-based reconstruction of Doppler signal ...

journal_title：IEEE transactions on medical imaging

authors： Lorintiu O,Liebgott H,Friboulet D

更新日期：2016-04-01 00:00:00

abstract：:The interest of compressive sampling in ultrasound imaging has been recently extensively evaluated by several research teams. Following the different application setups, it has been shown that the RF data may be reconstructed from a small number of measurements and/or using a reduced number of ultrasound pulse emissio...

journal_title：IEEE transactions on medical imaging

authors： Chen Z,Basarab A,Kouamé D

更新日期：2016-03-01 00:00:00

abstract：:With its single cell sensitivity over volumes as large as or larger than a mouse, cryo-imaging enables imaging of stem cell biodistribution, homing, engraftment, and molecular mechanisms. We developed and evaluated a highly automated software tool to detect fluorescently labeled stem cells within very large ( ∼ 200 GB...

journal_title：IEEE transactions on medical imaging

authors： Wuttisarnwattana P,Gargesha M,van't Hof W,Cooke KR,Wilson DL

更新日期：2016-03-01 00:00:00

abstract：:Biomedical applications such as cell tracking and angiography require the detection of low concentrations of superparamagnetic iron oxide nanoparticles (SPIOs) for imaging purposes. Magnetic particle imaging (MPI) is a new technology which enables the quantitative and time-resolved localization of SPIO distributions. ...

journal_title：IEEE transactions on medical imaging

authors： Them K,Kaul MG,Jung C,Hofmann M,Mummert T,Werner F,Knopp T

更新日期：2016-03-01 00:00:00

abstract：:A noninvasive computer-aided-theragnosis (CAT) system was developed for the early therapeutic cancer response assessment in patients with locally advanced breast cancer (LABC) treated with neoadjuvant chemotherapy. The proposed CAT system was based on multi-parametric quantitative ultrasound (QUS) spectroscopic method...

journal_title：IEEE transactions on medical imaging

authors： Gangeh MJ,Tadayyon H,Sannachi L,Sadeghi-Naini A,Tran WT,Czarnota GJ

更新日期：2016-03-01 00:00:00

abstract：:We propose a new method for the joint design of k-space trajectory and RF pulse in 3D small-tip tailored excitation. Designing time-varying RF and gradient waveforms for a desired 3D target excitation pattern in MRI poses a non-linear, non-convex, constrained optimization problem with relatively large problem size tha...

journal_title：IEEE transactions on medical imaging

authors： Hao S,Fessler JA,Noll DC,Nielsen JF

更新日期：2016-02-01 00:00:00

abstract：:Computed tomography (CT) imaging is an essential tool in various clinical diagnoses and radiotherapy treatment planning. Since CT image intensities are directly related to positron emission tomography (PET) attenuation coefficients, they are indispensable for attenuation correction (AC) of the PET images. However, due...

journal_title：IEEE transactions on medical imaging

authors： Huynh T,Gao Y,Kang J,Wang L,Zhang P,Lian J,Shen D,Alzheimer's Disease Neuroimaging Initiative.

更新日期：2016-01-01 00:00:00

abstract：:The theory and techniques of compressed sensing (CS) have shown their potential as a breakthrough in accelerating k-space data acquisition for parallel magnetic resonance imaging (pMRI). However, the performance of CS reconstruction models in pMRI has not been fully maximized, and CS recovery guarantees for pMRI are l...

journal_title：IEEE transactions on medical imaging

authors： Chun IY,Adcock B,Talavage TM

更新日期：2016-01-01 00:00:00

abstract：:Magnetic Resonance-Electrical Properties Tomography (MR-EPT) is an imaging modality that maps the spatial distribution of the electrical conductivity and permittivity using standard MRI systems. The presence of a body within the scanner alters the RF field, and by mapping these alterations it is possible to recover th...

journal_title：IEEE transactions on medical imaging

authors： Borsic A,Perreard I,Mahara A,Halter RJ

更新日期：2016-01-01 00:00:00

abstract：:Most X-ray fluoroscopy systems are stationary and impose restrictions on the measurement of dynamic joint motion; for example, knee-joint kinematics during gait is usually measured with the subject ambulating on a treadmill. We developed a computer-controlled, mobile, biplane, X-ray fluoroscopy system to track human b...

journal_title：IEEE transactions on medical imaging

authors： Guan S,Gray HA,Keynejad F,Pandy MG

更新日期：2016-01-01 00:00:00

abstract：:The presence of high-density objects remains an open problem in medical CT imaging. Data of projections passing through objects of high density, such as metal implants, are dominated by noise and are highly affected by beam hardening and scatter. Reconstructed images become less diagnostically conclusive because of pr...

journal_title：IEEE transactions on medical imaging

authors： Stille M,Kleine M,Hägele J,Barkhausen J,Buzug TM

更新日期：2016-01-01 00:00:00

abstract：:We present a common framework, for registering images to an atlas and for forming an unbiased atlas, that tolerates the presence of pathologies such as tumors and traumatic brain injury lesions. This common framework is particularly useful when a sufficient number of protocol-matched scans from healthy subjects cannot...

journal_title：IEEE transactions on medical imaging

authors： Liu X,Niethammer M,Kwitt R,Singh N,McCormick M,Aylward S

更新日期：2015-12-01 00:00:00

abstract：:A common challenge when performing surface-based registration of images is ensuring that the surfaces accurately represent consistent anatomical boundaries. Image segmentation may be difficult in some regions due to either poor contrast, low slice resolution, or tissue ambiguities. To address this, we present a novel ...

journal_title：IEEE transactions on medical imaging

authors： Khallaghi S,Sánchez CA,Rasoulian A,Nouranian S,Romagnoli C,Abdi H,Chang SD,Black PC,Goldenberg L,Morris WJ,Spadinger I,Fenster A,Ward A,Fels S,Abolmaesumi P

更新日期：2015-12-01 00:00:00

abstract：:In this paper we present a compressed sensing (CS) method adapted to 3D ultrasound imaging (US). In contrast to previous work, we propose a new approach based on the use of learned overcomplete dictionaries that allow for much sparser representations of the signals since they are optimized for a particular class of im...

journal_title：IEEE transactions on medical imaging

authors： Lorintiu O,Liebgott H,Alessandrini M,Bernard O,Friboulet D

更新日期：2015-12-01 00:00:00

abstract：:Detecting tools in surgical videos is an important ingredient for context-aware computer-assisted surgical systems. To this end, we present a new surgical tool detection dataset and a method for joint tool detection and pose estimation in 2d images. Our two-stage pipeline is data-driven and relaxes strong assumptions ...

journal_title：IEEE transactions on medical imaging

authors： Bouget D,Benenson R,Omran M,Riffaud L,Schiele B,Jannin P

更新日期：2015-12-01 00:00:00

abstract：:Pharmacokinetic analysis of dynamic positron emission tomography (PET) imaging data maps the measured time activity curves to a set of model-specific pharmacokinetic parameters. Voxel-based parameter estimation via curve fitting is conventionally performed indirectly on a sequence of independently reconstructed PET im...

journal_title：IEEE transactions on medical imaging

authors： Loeb R,Navab N,Ziegler SI

更新日期：2015-11-01 00:00:00

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

authors： Xu J,Tsui BM

更新日期：2015-10-01 00:00:00

abstract：:In waveform design for magnetic resonance applications, periodic continuous-wave excitation offers potential advantages that remain largely unexplored because of a lack of understanding of the Bloch equation with periodic continuous-wave excitations. Using harmonic balancing techniques the steady state solutions of th...

journal_title：IEEE transactions on medical imaging

authors： Tahayori B,Johnston LA,Layton KJ,Farrell PM,Mareels IM

更新日期：2015-10-01 00:00:00

abstract：:The accurate determination of the local impulse response and the covariance in voxels from penalized maximum likelihood reconstructed images requires performing reconstructions from many noise realizations of the projection data. As this is usually a very time-consuming process, efficient analytical approximations bas...

journal_title：IEEE transactions on medical imaging

authors： Pato LR,Vandenberghe S,Vandeghinste B,Van Holen R

更新日期：2015-09-01 00:00:00

abstract：:Spine-related disorders are amongst the most frequently encountered problems in clinical medicine. For several applications such as 1) to improve the assessment of the strength of the spine, as well as 2) to optimize the personalization of spinal interventions, image-based biomechanical modeling of the vertebrae is ex...

journal_title：IEEE transactions on medical imaging

authors： Lekadir K,Hoogendoorn C,Hazrati-Marangalou J,Taylor Z,Noble C,van Rietbergen B,Frangi AF

更新日期：2015-08-01 00:00:00

abstract：:Radiofrequency ablation (RFA) is an established treatment for liver cancer when resection is not possible. Yet, its optimal delivery is challenged by the presence of large blood vessels and the time-varying thermal conductivity of biological tissue. Incomplete treatment and an increased risk of recurrence are therefor...

journal_title：IEEE transactions on medical imaging

authors： Audigier C,Mansi T,Delingette H,Rapaka S,Mihalef V,Carnegie D,Boctor E,Choti M,Kamen A,Ayache N,Comaniciu D

更新日期：2015-07-01 00:00:00

abstract：:Given that heart disease can cause abnormal motion dynamics over the cardiac cycle, understanding and quantifying cardiac motion can provide insight for clinicians to aid with diagnosis, therapy planning, and determining prognosis. The goal of this paper is to extract population-specific motion patterns from 3D displa...

journal_title：IEEE transactions on medical imaging

authors： McLeod K,Sermesant M,Beerbaum P,Pennec X

更新日期：2015-07-01 00:00:00

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

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

更新日期：2015-06-01 00:00:00

abstract：:To improve the quantitative accuracy of linear attenuation coefficients measured by computed tomography (CT), we used a single scatter model to estimate the Compton scatter distribution and then a polychromatic image reconstruction algorithm, namely the iterative maximum-likelihood polychromatic algorithm for CT (IMPA...

journal_title：IEEE transactions on medical imaging

authors： Lee JS,Chen JC

更新日期：2015-06-01 00:00:00

abstract：:In standard B-mode ultrasound (BMUS), segmentation of the lumen of atherosclerotic carotid arteries and studying the lumen geometry over time are difficult owing to irregular lumen shapes, noise, artifacts, and echolucent plaques. Contrast enhanced ultrasound (CEUS) improves lumen visualization, but lumen segmentation...

journal_title：IEEE transactions on medical imaging

authors： Carvalho DD,Akkus Z,van den Oord SC,Schinkel AF,van der Steen AF,Niessen WJ,Bosch JG,Klein S

更新日期：2015-04-01 00:00:00

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

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

更新日期：2015-04-01 00:00:00

abstract：:Spectral computed tomography (CT) is a promising technique with the potential for improving lesion detection, tissue characterization, and material decomposition. In this paper, we are interested in kVp switching-based spectral CT that alternates distinct kVp X-ray transmissions during gantry rotation. This system can...

journal_title：IEEE transactions on medical imaging

authors： Kim K,Ye JC,Worstell W,Ouyang J,Rakvongthai Y,El Fakhri G,Li Q

更新日期：2015-03-01 00:00:00