Four-dimensional computed tomography angiography analysis of internal carotid arteries opacification at the skull base to detect delayed cerebral ischemia: a feasibility study.

abstract：OBJECTIVE:Complex oncologic interventions in the liver require an extensive and careful preoperative analysis. Particularly the achievement of an optimal safety margin around tumors remains a difficult task for surgeons. METHODS:We present new methods for evaluating different safety margins and their effect on the ass...

journal_title：International journal of computer assisted radiology and surgery

authors： Hansen C,Zidowitz S,Hindennach M,Schenk A,Hahn H,Peitgen HO

更新日期：2009-09-01 00:00:00

abstract：PURPOSE:This paper presents a novel 3D multimodal registration strategy to fuse 3D real-time echocardiography images with cardiac cine MRI images. This alignment is performed in a saliency space, which is designed to maximize similarity between the two imaging modalities. This fusion improves the quality of the availab...

journal_title：International journal of computer assisted radiology and surgery

authors： Atehortúa A,Garreau M,Simon A,Donal E,Lederlin M,Romero E

更新日期：2020-02-01 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:In the context of aviation and automotive navigation technology, assistance functions are associated with predictive planning and wayfinding tasks. In endoscopic minimally invasive surgery, however, assistance so far relies primarily on image-based localization and classification. We show that navigation workfl...

journal_title：International journal of computer assisted radiology and surgery

authors： Bieck R,Heuermann K,Pirlich M,Neumann J,Neumuth T

更新日期：2020-12-01 00:00:00

abstract：PURPOSE:Most evaluations of surgical workflow or surgeon skill use simple, descriptive statistics (e.g., time) across whole procedures, thereby deemphasizing critical steps and potentially obscuring critical inefficiencies or skill deficiencies. In this work, we examine off-line, temporal clustering methods that chunk ...

journal_title：International journal of computer assisted radiology and surgery

authors： French A,Lendvay TS,Sweet RM,Kowalewski TM

更新日期：2017-07-01 00:00:00

abstract：PURPOSE:Distance measures are required for diagnoses, therapy decision and documentation. With today's high-resolution CT and MR imaging techniques, high- quality images have become possible. Yet, manual measurement can be tedious. We present a method for automatically determining different distance-based measures on s...

journal_title：International journal of computer assisted radiology and surgery

authors： Rössling I,Cyrus C,Dornheim L,Boehm A,Preim B

更新日期：2010-11-01 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:This work presents a new monocular peer-to-peer tracking concept overcoming the distinction between tracking tools and tracked tools for optical navigation systems. A marker model concept based on marker triplets combined with a fast and robust algorithm for assigning image feature points to the corresponding m...

journal_title：International journal of computer assisted radiology and surgery

authors： Strzeletz S,Hazubski S,Moctezuma JL,Hoppe H

更新日期：2020-03-01 00:00:00

abstract：PURPOSE:An optoelectronic surgical navigation system was used to detect small but measurable translational motion of human hip cadavers in high-range passive motions. Kinematic data were also examined to demonstrate the role of soft tissues in constraining hip translation. METHODS:Twelve cadaver hips were scanned usin...

journal_title：International journal of computer assisted radiology and surgery

authors： Zakani S,Rudan JF,Ellis RE

更新日期：2017-08-01 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: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:Accurate vertebra detection and segmentation are essential steps for automating the diagnosis of spinal disorders. This study is dedicated to vertebra alignment measurement, the first step in a computer-aided diagnosis tool for cervical spine trauma. Automated vertebral segment alignment determination is a chal...

journal_title：International journal of computer assisted radiology and surgery

authors： Larhmam MA,Benjelloun M,Mahmoudi S

更新日期：2014-03-01 00:00:00

abstract：PURPOSE:Many diagnostic or treatment planning applications critically depend on the successful localization of bony structures in CT images. Manual or semiautomatic bone segmentation is tedious, however, and often not practical in clinical routine. In this paper, we present a reliable and fully automatic bone segmentat...

journal_title：International journal of computer assisted radiology and surgery

authors： Klein A,Warszawski J,Hillengaß J,Maier-Hein KH

更新日期：2019-01-01 00:00:00

abstract：PURPOSE:Surgical quality in phonomicrosurgery can be improved by open-loop laser control (e.g., high-speed scanning capabilities) with a robust and accurate closed-loop visual servoing systems. A new vision-based system for laser scanning control during robot-assisted phonomicrosurgery was developed and tested. METHOD...

journal_title：International journal of computer assisted radiology and surgery

authors： Dagnino G,Mattos LS,Caldwell DG

更新日期：2015-02-01 00:00:00

abstract：PURPOSE:Laparoscopic ultrasound (LUS) enhances the safety of laparoscopic liver resection by enabling real-time imaging of internal structures such as vessels. However, LUS probes can be difficult to use, and many tumours are iso-echoic and hence are not visible. Registration of LUS to a pre-operative CT or MR scan has...

journal_title：International journal of computer assisted radiology and surgery

authors： Ramalhinho J,Robu MR,Thompson S,Gurusamy K,Davidson B,Hawkes D,Barratt D,Clarkson MJ

更新日期：2018-08-01 00:00:00

abstract：PURPOSE:As the spectrum of X-ray procedures has increased both for diagnostic and for interventional cases, more attention is paid to X-ray dose management. While the medical benefit to the patient outweighs the risk of radiation injuries in almost all cases, reproducible studies on organ dose values help to plan preve...

journal_title：International journal of computer assisted radiology and surgery

authors： Roser P,Birkhold A,Preuhs A,Ochs P,Stepina E,Strobel N,Kowarschik M,Fahrig R,Maier A

更新日期：2021-01-01 00:00:00

abstract：PURPOSE:Laser ablation of hard tissue is not completely understood until now and not modeled for computer-assisted microsurgery. A precise planning and simulation is an essential step toward the usage of microsurgical laser bone ablation in the operating room. METHODS:Planning the volume for laser bone ablation is bas...

journal_title：International journal of computer assisted radiology and surgery

authors： Kahrs LA,Burgner J,Klenzner T,Raczkowsky J,Schipper J,Wörn H

更新日期：2010-03-01 00:00:00

abstract：PURPOSE:This paper discusses a real-time simulation method of inextensible surgical thread based on the Cosserat rod theory using position-based dynamics (PBD). The method realizes stable twining and knotting of surgical thread while including inextensibility, bending, twisting and coupling effects. METHODS:The Cosser...

journal_title：International journal of computer assisted radiology and surgery

authors： Xu L,Liu Q

更新日期：2018-07-01 00:00:00

abstract：PURPOSE:Breast masses exhibit variability in margins, shapes, and dimensions, so their detection is a difficult task in mammographic computer-aided diagnosis. Mass detection is usually a two-step procedure: mass identification and false-positive reduction. A new method to automatically detect mass lesions in mammograph...

journal_title：International journal of computer assisted radiology and surgery

authors： Mencattini A,Salmeri M

更新日期：2012-07-01 00:00:00

abstract：PURPOSE:   Most of the current Bonebridge surgeries undergo preoperative simulation planning in a computer. However, surgeons usually use the landmarks on the bone surface to determine the location where to implant the device, using the simulation image in the computer only as a reference (conventional method). We deve...

journal_title：International journal of computer assisted radiology and surgery

authors： Cho B,Matsumoto N,Mori M,Komune S,Hashizume M

更新日期：2014-09-01 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:Multimodality mammography using conventional 2D mammography and dynamic contrast-enhanced 3D magnetic resonance imaging (DCE-MRI) is frequently performed for breast cancer detection and diagnosis. Combination of both imaging modalities requires superimposition of corresponding structures in mammograms and MR im...

journal_title：International journal of computer assisted radiology and surgery

authors： Krüger J,Ehrhardt J,Bischof A,Handels H

更新日期：2014-05-01 00:00:00

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:To support preoperative planning of bone drilling for Microendoscopic Discectomy, we present a set of interactive bone-drilling methods using a general 2D pointing device. METHODS:Unlike the existing methods, our framework has the following features: (1) the user can directly cut away arbitrary 3D regions on t...

journal_title：International journal of computer assisted radiology and surgery

authors： Imanishi K,Nakao M,Kioka M,Mori M,Yoshida M,Takahashi T,Minato K

更新日期：2010-09-01 00:00:00

abstract：PURPOSE:This paper presents a method to use the Smart Trocars-our new surgical instrument recognition system-or any accurate localization system of surgical instrument for acquiring intraoperative surface data. Complex laparoscopic surgeries need a proper guidance system which requires registering the preoperative data...

journal_title：International journal of computer assisted radiology and surgery

authors： Garbey M,Nguyen TB,Huang AY,Fikfak V,Dunkin BJ

更新日期：2018-02-01 00:00:00

abstract：PURPOSE:Segmenting the cardiac ventricles in magnetic resonance (MR) images is required for cardiac function assessment. Numerous segmentation methods have been developed and applied to MR ventriculography. Quantitative validation of these segmentation methods with ground truth is needed prior to clinical use, but requ...

journal_title：International journal of computer assisted radiology and surgery

authors： Grosgeorge D,Petitjean C,Caudron J,Fares J,Dacher JN

更新日期：2011-09-01 00:00:00

abstract：PURPOSE:Lung cancer detection at its initial stages increases the survival chances of patients. Automatic detection of lung nodules facilitates radiologists during the diagnosis. However, there is a challenge of false positives in automated systems which may lead to wrong findings. Precise segmentation facilitates to a...

journal_title：International journal of computer assisted radiology and surgery

authors： Naqi SM,Sharif M,Yasmin M

更新日期：2018-07-01 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:Fusion of pre/perioperative images and intra-operative images may add relevant information during image-guided procedures. In abdominal procedures, respiratory motion changes the position of organs, and thus accurate image guidance requires a continuous update of the spatial alignment of the (pre/perioperative)...

journal_title：International journal of computer assisted radiology and surgery

authors： Ambrosini P,Ruijters D,Niessen WJ,Moelker A,van Walsum T

更新日期：2015-09-01 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