abstract：PURPOSE:Ultrasound is increasingly being employed in different orthopedic procedures as an imaging modality for real-time guidance. Nevertheless, low signal-to-noise-ratio and different imaging artifacts continue to hamper the success of ultrasound-based procedures. Bone shadow region is an important feature indicating...

journal_title：International journal of computer assisted radiology and surgery

authors： Hacihaliloglu I

更新日期：2017-06-01 00:00:00

abstract：PURPOSE:Epidural and spinal needle insertions, as well as facet joint denervation and injections are widely performed procedures on the lumbar spine for delivering anesthesia and analgesia. Ultrasound (US)-based approaches have gained popularity for accurate needle placement, as they use a non-ionizing, inexpensive and...

journal_title：International journal of computer assisted radiology and surgery

authors： Behnami D,Sedghi A,Anas EMA,Rasoulian A,Seitel A,Lessoway V,Ungi T,Yen D,Osborn J,Mousavi P,Rohling R,Abolmaesumi P

更新日期：2017-06-01 00:00:00

abstract：PURPOSE:Effectiveness of image-guided radiation therapy with precise dose delivery depends highly on accurate target localization, which may involve motion during treatment due to, e.g., breathing and drift. Therefore, it is important to track the motion and adjust the radiation delivery accordingly. Tracking generally...

journal_title：International journal of computer assisted radiology and surgery

authors： Ozkan E,Tanner C,Kastelic M,Mattausch O,Makhinya M,Goksel O

更新日期：2017-06-01 00:00:00

abstract：PURPOSE:Computer-aided detection (CAD) systems are developed to help radiologists detect colonic polyps over CT scans. It is possible to reduce the detection time and increase the detection accuracy rates by using CAD systems. In this paper, we aimed to develop a fully integrated CAD system for automated detection of p...

journal_title：International journal of computer assisted radiology and surgery

authors： Tulum G,Bolat B,Osman O

更新日期：2017-04-01 00:00:00

abstract：PURPOSE:Multi-organ segmentation from CT images is an essential step for computer-aided diagnosis and surgery planning. However, manual delineation of the organs by radiologists is tedious, time-consuming and poorly reproducible. Therefore, we propose a fully automatic method for the segmentation of multiple organs fro...

journal_title：International journal of computer assisted radiology and surgery

authors： Hu P,Wu F,Peng J,Bao Y,Chen F,Kong D

更新日期：2017-03-01 00:00:00

abstract：PURPOSE:We present a platform, GRAphical Pipeline Environment (GRAPE), to facilitate the development of patient-adaptive magnetic resonance imaging (MRI) protocols. METHODS:GRAPE is an open-source project implemented in the Qt C++ framework to enable graphical creation, execution, and debugging of real-time image anal...

journal_title：International journal of computer assisted radiology and surgery

authors： Gabr RE,Tefera GB,Allen WJ,Pednekar AS,Narayana PA

更新日期：2017-03-01 00:00:00

abstract：PURPOSE:We propose a fully automated method for detection and segmentation of the abnormal tissue associated with brain tumour (tumour core and oedema) from Fluid- Attenuated Inversion Recovery (FLAIR) Magnetic Resonance Imaging (MRI). METHODS:The method is based on superpixel technique and classification of each supe...

journal_title：International journal of computer assisted radiology and surgery

authors： Soltaninejad M,Yang G,Lambrou T,Allinson N,Jones TL,Barrick TR,Howe FA,Ye X

更新日期：2017-02-01 00:00:00

abstract：PURPOSE:Segmentation of the liver from abdominal computed tomography (CT) images is an essential step in some computer-assisted clinical interventions, such as surgery planning for living donor liver transplant, radiotherapy and volume measurement. In this work, we develop a deep learning algorithm with graph cut refin...

journal_title：International journal of computer assisted radiology and surgery

authors： Lu F,Wu F,Hu P,Peng Z,Kong D

更新日期：2017-02-01 00:00:00

abstract：PURPOSE:Nowadays, with the increased diffusion of Cone Beam Computerized Tomography (CBCT) scanners in dental and maxillo-facial practice, 3D cephalometric analysis is emerging. Maxillofacial surgeons and dentists make wide use of cephalometric analysis in diagnosis, surgery and treatment planning. Accuracy and repeata...

journal_title：International journal of computer assisted radiology and surgery

authors： Codari M,Caffini M,Tartaglia GM,Sforza C,Baselli G

更新日期：2017-01-01 00:00:00

abstract：PURPOSE:The reconstruction of large continuity defects of the mandible is a challenging task, especially when the shape of the missing part is not known prior to operation. Today, the surgical planning is based mainly on visual judgment and the individual skills and experience of the surgeons. The objective of the curr...

journal_title：International journal of computer assisted radiology and surgery

authors： Raith S,Wolff S,Steiner T,Modabber A,Weber M,Hölzle F,Fischer H

更新日期：2017-01-01 00:00:00

abstract：PURPOSE:An augmented reality system to visualize a 3D preoperative anatomical model on intra-operative patient is proposed. The hardware requirement is commercial tablet-PC equipped with a camera. Thus, no external tracking device nor artificial landmarks on the patient are required. METHODS:We resort to visual SLAM t...

journal_title：International journal of computer assisted radiology and surgery

authors： Mahmoud N,Grasa ÓG,Nicolau SA,Doignon C,Soler L,Marescaux J,Montiel JM

更新日期：2017-01-01 00:00:00

abstract：PURPOSE:Tele-operation of robotic surgery reduces the radiation exposure during the interventional radiological operations. However, endoscope vision without force feedback on the surgical tool increases the difficulty for precise manipulation and the risk of tissue damage. The shared control of vision and force provid...

journal_title：International journal of computer assisted radiology and surgery

authors： Xiong L,Chng CB,Chui CK,Yu P,Li Y

更新日期：2017-01-01 00:00:00

abstract：PURPOSE:Accurate target delineation is a critical step in radiotherapy. In this study, a robust contour propagation method is proposed to help physicians delineate lung tumors in four-dimensional computer tomography (4D-CT) images efficiently and accurately. METHODS:The proposed method starts with manually delineated ...

journal_title：International journal of computer assisted radiology and surgery

authors： Liu Y,Jin R,Chen M,Song E,Xu X,Zhang S,Hung CC

更新日期：2016-12-01 00:00:00

abstract：PURPOSE:In the past decade, augmented reality systems have been expected to support surgical operations by making it possible to view invisible objects that are inside or occluded by the skull, hands, or organs. However, the properties of biological tissues that are non-rigid and featureless require a large number of d...

journal_title：International journal of computer assisted radiology and surgery

authors： Tamura Y,Mashita T,Kuroda Y,Kiyokawa K,Takemura H

更新日期：2016-12-01 00:00:00

abstract：PURPOSE:In both structural and functional MRI, there is a need for accurate and reliable automatic segmentation of brain regions. Inconsistent segmentation reduces sensitivity and may bias results in clinical studies. The current study compares the performance of publicly available segmentation tools and their impact o...

journal_title：International journal of computer assisted radiology and surgery

authors： Næss-Schmidt E,Tietze A,Blicher JU,Petersen M,Mikkelsen IK,Coupé P,Manjón JV,Eskildsen SF

更新日期：2016-11-01 00:00:00

abstract：PURPOSE:Brain tumor patients are usually accompanied by impairments in cognitive functions, and these dysfunctions arise from the altered diffusion tensor of water molecules and disrupted neuronal conduction in white matter. Diffusion tensor imaging (DTI) is a powerful noninvasive imaging technique that can reflect dif...

journal_title：International journal of computer assisted radiology and surgery

authors： Yu Z,Tao L,Qian Z,Wu J,Liu H,Yu Y,Song J,Wang S,Sun J

更新日期：2016-11-01 00:00:00

abstract：PURPOSE:Over the last decade, the demand for content management of video recordings of surgical procedures has greatly increased. Although a few research methods have been published toward this direction, the related literature is still in its infancy. In this paper, we address the problem of shot detection in endoscop...

journal_title：International journal of computer assisted radiology and surgery

authors： Loukas C,Nikiteas N,Schizas D,Georgiou E

更新日期：2016-11-01 00:00:00

abstract：PURPOSE:Real-time magnetic resonance imaging (rtMRI) guidance provides significant advantages during transcatheter aortic valve replacement (TAVR) as it provides superior real-time visualization and accurate device delivery tracking. However, performing a TAVR within an MRI scanner remains difficult due to a constraine...

journal_title：International journal of computer assisted radiology and surgery

authors： Chan JL,Mazilu D,Miller JG,Hunt T,Horvath KA,Li M

更新日期：2016-10-01 00:00:00

abstract：PURPOSE:Regional infarction identification is important for heart disease diagnosis and management, and myocardial deformation has been shown to be effective for this purpose. Although tagged and strain-encoded MR images can provide such measurements, they are uncommon in clinical routine. On the contrary, cardiac CT i...

journal_title：International journal of computer assisted radiology and surgery

authors： Wong KC,Tee M,Chen M,Bluemke DA,Summers RM,Yao J

更新日期：2016-09-01 00:00:00

abstract：PURPOSE:Our particular motivator is the need for screening HIV+ populations in resource-constrained regions for the evidence of tuberculosis, using posteroanterior chest radiographs (CXRs). METHOD:The proposed method is motivated by the observation that abnormal CXRs tend to exhibit corrupted and/or deformed thoracic ...

journal_title：International journal of computer assisted radiology and surgery

authors： Santosh KC,Vajda S,Antani S,Thoma GR

更新日期：2016-09-01 00:00:00

abstract：PURPOSE:Calibration and registration are the first steps for augmented reality and mixed reality applications. In the medical field, the calibration between an RGB-D camera and a C-arm fluoroscope is a new topic which introduces challenges. METHOD:A convenient and efficient calibration phantom is designed by combining...

journal_title：International journal of computer assisted radiology and surgery

authors： Wang X,Habert S,Ma M,Huang CH,Fallavollita P,Navab N

更新日期：2016-08-01 00:00:00

abstract：PURPOSE:Laser range scanners (LRS) allow performing a surface scan without physical contact with the organ, yielding higher registration accuracy for image-guided surgery (IGS) systems. However, the use of LRS-based registration in laparoscopic liver surgery is still limited because current solutions are composed of ex...

journal_title：International journal of computer assisted radiology and surgery

authors： Fusaglia M,Hess H,Schwalbe M,Peterhans M,Tinguely P,Weber S,Lu H

更新日期：2016-08-01 00:00:00

abstract：PURPOSE:Despite great advances in medical image segmentation, the accurate and automatic segmentation of endoscopic scenes remains a challenging problem. Two important aspects have to be considered in segmenting an endoscopic scene: (1) noise and clutter due to light reflection and smoke from cutting tissue, and (2) st...

journal_title：International journal of computer assisted radiology and surgery

authors： Nosrati MS,Amir-Khalili A,Peyrat JM,Abinahed J,Al-Alao O,Al-Ansari A,Abugharbieh R,Hamarneh G

更新日期：2016-08-01 00:00:00

abstract：PURPOSE:To evaluate the accuracy of three-dimensional cephalometric measurements obtained through an automatic landmark detection algorithm compared to those obtained through manual identification. METHODS:The study demonstrates a comparison of 51 cephalometric measurements (28 linear, 16 angles and 7 ratios) on 30 CB...

journal_title：International journal of computer assisted radiology and surgery

authors： Gupta A,Kharbanda OP,Sardana V,Balachandran R,Sardana HK

更新日期：2016-07-01 00:00:00

abstract：PURPOSE:This paper proposes a method to predict the deflection of a flexible needle inserted into soft tissue based on the observation of deflection at a single point along the needle shaft. METHODS:We model the needle-tissue as a discretized structure composed of several virtual, weightless, rigid links connected by ...

journal_title：International journal of computer assisted radiology and surgery

authors： Rossa C,Sloboda R,Usmani N,Tavakoli M

更新日期：2016-07-01 00:00:00

abstract：PURPOSE:Surgical phase recognition using sensor data is challenging due to high variation in patient anatomy and surgeon-specific operating styles. Segmenting surgical procedures into constituent phases is of significant utility for resident training, education, self-review, and context-aware operating room technologie...

journal_title：International journal of computer assisted radiology and surgery

authors： Malpani A,Lea C,Chen CC,Hager GD

更新日期：2016-06-01 00:00:00

abstract：PURPOSE:Precise needle placement is an important task during several medical procedures. Ultrasound imaging is often used to guide the needle toward the target region in soft tissue. This task remains challenging due to the user's dependence on image quality, limited field of view, moving target, and moving needle. In ...

journal_title：International journal of computer assisted radiology and surgery

authors： Kojcev R,Fuerst B,Zettinig O,Fotouhi J,Lee SC,Frisch B,Taylor R,Sinibaldi E,Navab N

更新日期：2016-06-01 00:00:00

abstract：PURPOSE:Focal therapy in low-risk prostate cancer may provide the best balance between cancer control and quality of life preservation. As a minimally invasive approach performed under TRUS guidance, brachytherapy is an appealing framework for focal therapy. However, the contrast in TRUS images is generally insufficien...

journal_title：International journal of computer assisted radiology and surgery

authors： Mayer A,Zholkover A,Portnoy O,Raviv G,Konen E,Symon Z

更新日期：2016-06-01 00:00:00

abstract：PURPOSE:The purpose of the present study is to apply kinetic analysis to investigate exercise-related changes in the metabolism of the skeletal muscle of the rat hindlimb by [[Formula: see text]]acetate positron emission tomography and computed tomography (PET/CT). METHODS:Contractions were induced in Wistar rats' lef...

journal_title：International journal of computer assisted radiology and surgery

authors： Trombella S,García D,Colin DJ,Germain S,Seimbille Y,Ratib O

更新日期：2016-05-01 00:00:00

abstract：PURPOSE:In this paper, we investigate a framework for interactive brain tumor segmentation which, at its core, treats the problem of interactive brain tumor segmentation as a machine learning problem. METHODS:This method has an advantage over typical machine learning methods for this task where generalization is made ...

journal_title：International journal of computer assisted radiology and surgery

authors： Havaei M,Larochelle H,Poulin P,Jodoin PM

更新日期：2016-05-01 00:00:00

abstract：PURPOSE:Preoperative planning is of great importance for transforaminal endoscopic techniques applied in percutaneous endoscopic lumbar discectomy. In this study, a modular preoperative planning software for transforaminal endoscopic surgery was developed and demonstrated. METHODS:The path searching method is based on...

journal_title：International journal of computer assisted radiology and surgery

authors： Chen X,Cheng J,Gu X,Sun Y,Politis C

更新日期：2016-04-01 00:00:00

abstract：PURPOSE:Minimally invasive interventions offer benefits for patients, while also entailing drawbacks for surgeons, such as the loss of depth perception. Thus estimating distances, which is of particular importance in gastric bypasses, becomes difficult. In this paper, we propose an approach based on stereo endoscopy th...

journal_title：International journal of computer assisted radiology and surgery

authors： Bodenstedt S,Wagner M,Mayer B,Stemmer K,Kenngott H,Müller-Stich B,Dillmann R,Speidel S

更新日期：2016-03-01 00:00:00

abstract：PURPOSE:Boundary roughness of a pulmonary nodule is an important indication of its malignancy. The irregularity of the shape of a nodule is represented in terms of a few diagnostic characteristics such as spiculation, lobulation, and sphericity. Quantitative characterization of these diagnostic characteristics is essen...

journal_title：International journal of computer assisted radiology and surgery

authors： Dhara AK,Mukhopadhyay S,Saha P,Garg M,Khandelwal N

更新日期：2016-03-01 00:00:00

abstract：PURPOSE:The interaction with interventional imaging systems within a sterile environment is a challenging task for physicians. Direct physician-machine interaction during an intervention is rather limited because of sterility and workspace restrictions. METHODS:We present a gesture-controlled projection display that e...

journal_title：International journal of computer assisted radiology and surgery

authors： Mewes A,Saalfeld P,Riabikin O,Skalej M,Hansen C

更新日期：2016-01-01 00:00:00

abstract：PURPOSE:The purpose of this study was to validate a quick, accurate and reproducible (semi-) automatic software segmentation method to measure orbital volume in the unaffected bony orbit. Precise volume measurement of the orbital cavity is a useful addition to pre-operative planning and intraoperative navigation in orb...

journal_title：International journal of computer assisted radiology and surgery

authors： Jansen J,Schreurs R,Dubois L,Maal TJ,Gooris PJ,Becking AG

更新日期：2016-01-01 00:00:00

abstract：PURPOSE:Automatic segmentation of anatomical structures and lesions from medical ultrasound images is a formidable challenge in medical imaging due to image noise, blur and artifacts. In this paper we present a segmentation technique with features highly suited to use in noisy 3D ultrasound volumes and demonstrate its ...

journal_title：International journal of computer assisted radiology and surgery

authors： Hareendranathan AR,Mabee M,Punithakumar K,Noga M,Jaremko JL

更新日期：2016-01-01 00:00:00

abstract：PURPOSE:Objective determination of the orbital volume is important in the diagnostic process and in evaluating the efficacy of medical and/or surgical treatment of orbital diseases. Tools designed to measure orbital volume with computed tomography (CT) often cannot be used with cone beam CT (CBCT) because of inferior t...

journal_title：International journal of computer assisted radiology and surgery

authors： Wagner ME,Gellrich NC,Friese KI,Becker M,Wolter FE,Lichtenstein JT,Stoetzer M,Rana M,Essig H

更新日期：2016-01-01 00:00:00

abstract：PURPOSE:In lung cancer screening, pulmonary nodules are first identified in low-dose chest CT images. Costly follow-up procedures could be avoided if it were possible to establish the malignancy status of these nodules from these initial images. Preliminary computer methods have been proposed to characterize the malign...

journal_title：International journal of computer assisted radiology and surgery

authors： Reeves AP,Xie Y,Jirapatnakul A

更新日期：2016-01-01 00:00:00

abstract：PURPOSE:Realistic modelling of soft tissue biomechanics and mechanical interactions between tissues is an important part of biomechanically-informed surgical image-guidance and surgical simulation. This submission details a contact-modelling pipeline suitable for implementation in explicit matrix-free FEM solvers. Whil...

journal_title：International journal of computer assisted radiology and surgery

authors： Johnsen SF,Taylor ZA,Han L,Hu Y,Clarkson MJ,Hawkes DJ,Ourselin S

更新日期：2015-11-01 00:00:00

abstract：PURPOSE:Diagnosis of neuromuscular diseases in ultrasonography is a challenging task since experts are often unable to discriminate between healthy and pathological cases. A computer-aided diagnosis (CAD) system for skeletal muscle ultrasonography was developed and tested for myositis detection in ultrasound images of ...

journal_title：International journal of computer assisted radiology and surgery

authors： König T,Steffen J,Rak M,Neumann G,von Rohden L,Tönnies KD

更新日期：2015-09-01 00:00:00