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:Ultrasound (US) imaging offers advantages over other imaging modalities and has become the most widespread modality for many diagnostic and interventional procedures. However, traditional 2D US requires a long training period, especially to learn how to manipulate the probe. A hybrid interactive system based on...

journal_title：International journal of computer assisted radiology and surgery

authors： Freschi C,Parrini S,Dinelli N,Ferrari M,Ferrari V

更新日期：2015-07-01 00:00:00

abstract：PURPOSE:Statistical shape and appearance models play an important role in reducing the segmentation processing time of a vertebra and in improving results for 3D model development. Here, we describe the different steps in generating a statistical shape model (SSM) of the second cervical vertebra (C2) and provide the sh...

journal_title：International journal of computer assisted radiology and surgery

authors： Clogenson M,Duff JM,Luethi M,Levivier M,Meuli R,Baur C,Henein S

更新日期：2015-07-01 00:00:00

abstract：PURPOSE:Analyzing surgical activities has received a growing interest in recent years. Several methods have been proposed to identify surgical activities and surgical phases from data acquired in operating rooms. These context-aware systems have multiple applications including: supporting the surgical team during the i...

journal_title：International journal of computer assisted radiology and surgery

authors： Forestier G,Riffaud L,Jannin P

更新日期：2015-06-01 00:00:00

abstract：PURPOSE:Context-aware systems for the operating room (OR) provide the possibility to significantly improve surgical workflow through various applications such as efficient OR scheduling, context-sensitive user interfaces, and automatic transcription of medical procedures. Being an essential element of such a system, su...

journal_title：International journal of computer assisted radiology and surgery

authors： Twinanda AP,Alkan EO,Gangi A,de Mathelin M,Padoy N

更新日期：2015-06-01 00:00:00

abstract：PURPOSE:Previous work on surgical skill assessment using intraoperative tool motion has focused on highly structured surgical tasks such as cholecystectomy and used generic motion metrics such as time and number of movements. Other statistical methods such as hidden Markov models (HMM) and descriptive curve coding (DCC...

journal_title：International journal of computer assisted radiology and surgery

authors： Ahmidi N,Poddar P,Jones JD,Vedula SS,Ishii L,Hager GD,Ishii M

更新日期：2015-06-01 00:00:00

abstract：PURPOSE:Image-guided surgery systems are limited by registration error, so practical and effective methods to improve accuracy are necessary. A projection point-based method for reducing the surface registration error in image-guided surgery was developed and tested. METHODS:Checkerboard patterns are projected on visi...

journal_title：International journal of computer assisted radiology and surgery

authors： Serej ND,Ahmadian A,Mohagheghi S,Sadrehosseini SM

更新日期：2015-05-01 00:00:00

abstract：PURPOSE:Deep brain stimulation (DBS) is a surgical procedure for treating motor-related neurological disorders. DBS clinical efficacy hinges on precise surgical planning and accurate electrode placement, which in turn call upon several image processing and visualization tasks, such as image registration, image segmenta...

journal_title：International journal of computer assisted radiology and surgery

authors： D'Albis T,Haegelen C,Essert C,Fernández-Vidal S,Lalys F,Jannin P

更新日期：2015-02-01 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:StereoElectroEncephaloGraphy (SEEG) is done to identify the epileptogenic zone of the brain using several multi-lead electrodes whose positions in the brain are pre-operatively defined. Intracranial hemorrhages due to disruption of blood vessels can cause major complications of this procedure ([Formula: see tex...

journal_title：International journal of computer assisted radiology and surgery

authors： De Momi E,Caborni C,Cardinale F,Casaceli G,Castana L,Cossu M,Mai R,Gozzo F,Francione S,Tassi L,Lo Russo G,Antiga L,Ferrigno G

更新日期：2014-11-01 00:00:00

abstract：PURPOSE:Minimally invasive cochlear implantation is a surgical technique which requires drilling a canal from the mastoid surface toward the basal turn of the cochlea. The choice of an appropriate drilling strategy is hypothesized to have significant influence on the achievable targeting accuracy. Therefore, a method i...

journal_title：International journal of computer assisted radiology and surgery

authors： Kobler JP,Schoppe M,Lexow GJ,Rau TS,Majdani O,Kahrs LA,Ortmaier T

更新日期：2014-11-01 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:Suspension laryngoscopy has been employed for laryngeal diseases such as treatment for a polyp, cystoma, or granuloma. After securing a straight path with a laryngoscope, the surgeon inserts rigid instruments and examines the target lesion by using a microscope. However, many patients suffer from secondary comp...

journal_title：International journal of computer assisted radiology and surgery

authors： Kwon YS,Tae K,Yi BJ

更新日期：2014-07-01 00:00:00

abstract：PURPOSE:C-arm fluoroscopy is frequently used in clinical applications as a low-cost and mobile real-time qualitative assessment tool. C-arms, however, are not widely accepted for applications involving quantitative assessments, mainly due to the lack of reliable and low-cost position tracking methods, as well as adequa...

journal_title：International journal of computer assisted radiology and surgery

authors： Amiri S,Wilson DR,Masri BA,Anglin C

更新日期：2014-07-01 00:00:00

abstract：BACKGROUND:High-intensity focused ultrasound (HIFU) is a promising treatment method for many common cancers, including prostate cancer. Magnetic resonance image (MRI) guidance of HIFU permits targeting and monitoring of therapy. A prototype MRI-compatible positioning device that navigates a HIFU transducer was designed...

journal_title：International journal of computer assisted radiology and surgery

authors： Yiallouras C,Mylonas N,Damianou C

更新日期：2014-07-01 00:00:00

abstract：BACKGROUND:Brain retraction causes great distortion that limits the accuracy of an image-guided neurosurgery system that uses preoperative images. Therefore, brain retraction correction is an important intraoperative clinical application. METHODS:We used a linear elastic biomechanical model, which deforms based on the...

journal_title：International journal of computer assisted radiology and surgery

authors： Li P,Wang W,Song Z,An Y,Zhang C

更新日期：2014-07-01 00:00:00

abstract：PURPOSE:Organ motion due to patient breathing introduces a technical challenge for dosimetry and lung tumor treatment by hadron therapy. Accurate dose distribution estimation requires patient-specific information on tumor position, size, and shape as well as information regarding the material density and stopping power...

journal_title：International journal of computer assisted radiology and surgery

authors： Manescu P,Ladjal H,Azencot J,Beuve M,Testa E,Shariat B

更新日期：2014-05-01 00:00:00

abstract：PURPOSE:Intra-procedural acquisition of the patient anatomy is a key technique in the context of computer-assisted interventions (CAI). Ultrasound (US) offers major advantages as an interventional imaging modality because it is real time and low cost and does not expose the patient or physician to harmful radiation. To...

journal_title：International journal of computer assisted radiology and surgery

authors： März K,Franz AM,Seitel A,Winterstein A,Bendl R,Zelzer S,Nolden M,Meinzer HP,Maier-Hein L

更新日期：2014-05-01 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:Evaluation of circulating blood volume is important in assessing the status of patients. Although some studies have suggested that ultrasound images of the internal jugular vein (IJV) can be used for the analysis of circulating blood volume, accurate extraction of IJV is necessary to reduce errors. Therefore, t...

journal_title：International journal of computer assisted radiology and surgery

authors： Qian K,Ando T,Nakamura K,Liao H,Kobayashi E,Yahagi N,Sakuma I

更新日期：2014-03-01 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:Detection and segmentation of a brain tumor such as glioblastoma multiforme (GBM) in magnetic resonance (MR) images are often challenging due to its intrinsically heterogeneous signal characteristics. A robust segmentation method for brain tumor MRI scans was developed and tested. METHODS:Simple thresholds and...

journal_title：International journal of computer assisted radiology and surgery

authors： Wu W,Chen AY,Zhao L,Corso JJ

更新日期：2014-03-01 00:00:00

abstract：PURPOSE:Abnormalities of aortic surface and aortic diameter can be related to cardiovascular disease and aortic aneurysm. Computer-based aortic segmentation and measurement may aid physicians in related disease diagnosis. This paper presents a fully automated algorithm for aorta segmentation in low-dose non-contrast CT...

journal_title：International journal of computer assisted radiology and surgery

authors： Xie Y,Padgett J,Biancardi AM,Reeves AP

更新日期：2014-03-01 00:00:00

abstract：OBJECTIVE:Software-based devices have increasingly become an important part of several clinical scenarios. Due to their critical impact on human life, medical devices have very strict safety requirements. It is therefore necessary to apply verification methods to ensure that the safety requirements are met. Verificatio...

journal_title：International journal of computer assisted radiology and surgery

authors： Daw Z,Cleaveland R,Vetter M

更新日期：2014-01-01 00:00:00

abstract：OBJECTIVES:Image-guided otological surgeries require minimal invasiveness and high accuracy, and these two factors usually compete with each other. Our recently developed registration method, called the STAMP method, showed minimal invasiveness with accuracy comparable to that of the current more invasive registration ...

journal_title：International journal of computer assisted radiology and surgery

authors： Oka M,Cho B,Matsumoto N,Hong J,Jinnouchi M,Ouchida R,Komune S,Hashizume M

更新日期：2014-01-01 00:00:00

abstract：PURPOSE:To assess retrospectively the clinical accuracy of an magnetic resonance imaging-guided robotic prostate biopsy system that has been used in the US National Cancer Institute for over 6 years. METHODS:Series of 2D transverse volumetric MR image slices of the prostate both pre (high-resolution T2-weighted)- and ...

journal_title：International journal of computer assisted radiology and surgery

authors： Xu H,Lasso A,Guion P,Krieger A,Kaushal A,Singh AK,Pinto PA,Coleman J,Grubb RL 3rd,Lattouf JB,Menard C,Whitcomb LL,Fichtinger G

更新日期：2013-11-01 00:00:00

abstract：PURPOSE:The use of projector-based augmented reality (AR) in surgery may enable surgeons to directly view anatomical models and surgical data from the patient's surface (skin). It has the advantages of a consistent viewing focus on the patient, an extended field of view and augmented interaction. This paper presents an...

journal_title：International journal of computer assisted radiology and surgery

authors： Wen R,Chui CK,Ong SH,Lim KB,Chang SK

更新日期：2013-11-01 00:00:00

abstract：PURPOSE:Medical imaging and in particular digital radiographic images offer a great deal of information to dentists in the clinical diagnosis and treatment processes on a daily basis. This paper presents a new method aimed to produce an accurate segmentation of dental implants and the crestal bone line in radiographic ...

journal_title：International journal of computer assisted radiology and surgery

authors： Cunha P,Guevara MA,Messias A,Rocha S,Reis R,Nicolau PM

更新日期：2013-09-01 00:00:00

abstract：PURPOSE:When we register diffusion tensor tractography (DTT) to anatomical images such as fast imaging employing steady-state acquisition (FIESTA), we register the B0 image to FIESTA. Precise registration of the DTT B0 image to FIESTA is possible with non-rigid registration compared to rigid registration, although the ...

journal_title：International journal of computer assisted radiology and surgery

authors： Yoshino M,Kin T,Saito T,Nakagawa D,Nakatomi H,Kunimatsu A,Oyama H,Saito N

更新日期：2013-08-20 00:00:00

abstract：PURPOSE:The objective of this work is to develop a preoperative reconstruction plate design system for unilateral pelvic and acetabular fracture reduction and internal fixation surgery, using computer graphics and augmented reality (AR) techniques, in order to respect the patient-specific morphology and to reduce surgi...

journal_title：International journal of computer assisted radiology and surgery

authors： Shen F,Chen B,Guo Q,Qi Y,Shen Y

更新日期：2013-03-01 00:00:00

abstract：PURPOSE:Cardiac strain calculated from tagged magnetic resonance (MR) images provides clinicians information about abnormalities of heart-wall motion in patients. It is important to develop an accurate method to determine the cardiac strain efficiently. An adaptive windowed harmonic phase (AWHARP) method is proposed fo...

journal_title：International journal of computer assisted radiology and surgery

authors： Fu YB,Chui CK,Teo CL

更新日期：2013-01-01 00:00:00

abstract：PURPOSE:Most ultrasound imaging systems assume a pre-determined sound propagation speed for imaging. However, a mismatch between assumed and real sound speeds can lead to spatial shift and defocus of ultrasound image, which may limit the applicability of ultrasound imaging. The estimation of real sound speed is importa...

journal_title：International journal of computer assisted radiology and surgery

authors： Qu X,Azuma T,Liang JT,Nakajima Y

更新日期：2012-11-01 00:00:00

abstract：PURPOSE:Minimally invasive treatment of solid cancers, especially in the breast and liver, remains clinically challenging, despite a variety of treatment modalities, including radiofrequency ablation (RFA), microwave ablation or high-intensity focused ultrasound. Each treatment modality has advantages and disadvantages...

journal_title：International journal of computer assisted radiology and surgery

authors： Wang Z,Aarya I,Gueorguieva M,Liu D,Luo H,Manfredi L,Wang L,McLean D,Coleman S,Brown S,Cuschieri A

更新日期：2012-11-01 00:00:00

abstract：PURPOSE:Asymmetric stress imposed on the shoulder can lead to anterior shoulder instability in young athletes who perform repetitive overhead motions. A common treatment, surgical anterior capsule tightening, assumes that the instability is caused by abnormal anterior laxity. This study investigated the possibility tha...

journal_title：International journal of computer assisted radiology and surgery

authors： Zakani S,Venne G,Smith EJ,Bicknell R,Ellis RE

更新日期：2012-11-01 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:To perform bronchoscopy safely and smoothly, it is very important to develop a bronchoscopic guidance system. Transbronchial lung biopsy (TBLB) with a bronchoscopic guidance system especially should permit safe image-guided procedures. Recently, electromagnetic tracking (EMT) is utilized to track the tip of the...

journal_title：International journal of computer assisted radiology and surgery

authors： Deguchi D,Feuerstein M,Kitasaka T,Suenaga Y,Ide I,Murase H,Imaizumi K,Hasegawa Y,Mori K

更新日期：2012-05-01 00:00:00

abstract：PURPOSE:Periacetabular osteotomies are a family of surgical procedures used to treat hip dysplasia. In a periacetabular osteotomy, the operating surgeon aims to increase acetabular coverage of the femoral head. The surgical correction has mechanical goals of increasing the stability of the joint and to improving the pr...

journal_title：International journal of computer assisted radiology and surgery

authors： Rasquinha BJ,Sayani J,Rudan JF,Wood GC,Ellis RE

更新日期：2012-03-01 00:00:00

abstract：PURPOSE:Prostate carcinoma is a commonly diagnosed cancer in men. Nonsurgical treatment of early stage prostate cancer is an important alternative. The use of MRI for tumor cryoablation is of particular interest: it offers lower morbidity compared with other localized techniques. However, the current manual procedure i...

journal_title：International journal of computer assisted radiology and surgery

authors： Abdelaziz S,Esteveny L,Renaud P,Bayle B,Barbé L,De Mathelin M,Gangi A

更新日期：2011-11-01 00:00:00

abstract：PURPOSE:To develop an image analysis method that can automatically find correlations between a set of plain radiographs and continuous clinical or physiological indicators. METHODS:Knee X-rays taken from the Baltimore Longitudinal Study of Aging are used in this study. The computer analysis method is based on the WND-...

journal_title：International journal of computer assisted radiology and surgery

authors： Shamir L

更新日期：2011-09-01 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