Abstract：
:Radiofrequency ablation is an interventional technique that in recent years has come to be employed in very different medical fields, such as the elimination of cardiac arrhythmias or the destruction of tumors in different locations. In order to investigate and develop new techniques, and also to improve those currently employed, theoretical models and computer simulations are a powerful tool since they provide vital information on the electrical and thermal behavior of ablation rapidly and at low cost. In the future they could even help to plan individual treatment for each patient. This review analyzes the state-of-the-art in theoretical modeling as applied to the study of radiofrequency ablation techniques. Firstly, it describes the most important issues involved in this methodology, including the experimental validation. Secondly, it points out the present limitations, especially those related to the lack of an accurate characterization of the biological tissues. After analyzing the current and future benefits of this technique it finally suggests future lines and trends in the research of this area.
journal_name
Biomed Eng Onlinejournal_title
Biomedical engineering onlineauthors
Berjano EJdoi
10.1186/1475-925X-5-24subject
Has Abstractpub_date
2006-04-18 00:00:00pages
24issn
1475-925Xpii
1475-925X-5-24journal_volume
5pub_type
杂志文章,评审abstract：BACKGROUND:In literature, the effect of the inflow boundary condition was investigated by examining the impact of the waveform and the shape of the spatial profile of the inlet velocity on the cardiac hemodynamics. However, not much work has been reported on comparing the effect of the different combinations of the inl...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-14-S1-S6
更新日期：2015-01-01 00:00:00
abstract：BACKGROUND:The pupillary light reflex characterizes the direct and consensual response of the eye to the perceived brightness of a stimulus. It has been used as indicator of both neurological and optic nerve pathologies. As with other eye reflexes, this reflex constitutes an almost instantaneous movement and is linked ...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-015-0016-6
更新日期：2015-03-13 00:00:00
abstract：BACKGROUND:Tumor hypoxia is involved in every stage of solid tumor development: formation, progression, metastasis, and apoptosis. Two types of hypoxia exist in tumors-chronic hypoxia and acute hypoxia. Recent studies indicate that the regional hypoxia kinetics is closely linked to metastasis and therapeutic responses,...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-016-0235-5
更新日期：2016-10-12 00:00:00
abstract：BACKGROUND:Understanding aneurysm growth rate allows us to predict not only the current rupture risk, but also accumulated rupture risk in the future. However, determining growth rate of unruptured intracranial aneurysms often requires follow-up of patients for a long period of time so that significant growth can be ob...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-8-11
更新日期：2009-06-18 00:00:00
abstract：:A comment on G. Litscher: Infrared thermography fails to visualize stimulation-induced meridian-like structures. Biomed. Eng. OnLine 2005, 4:38 (15 June 2005), with a response by the author. ...
journal_title：Biomedical engineering online
pub_type： 评论,信件
doi：10.1186/1475-925X-10-80
更新日期：2011-09-11 00:00:00
abstract：INTRODUCTION:This paper concerns the analysis of the features obtained from thyroid ultrasound images in left and right transverse and longitudinal sections. In the image analysis, the thyroid lobe is treated as a texture for healthy subjects and patients with Hashimoto's disease. The applied methods of analysis and im...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-11-48
更新日期：2012-08-16 00:00:00
abstract：BACKGROUND:Exercise has been found to either reduce or increase arterial stiffness. Land-based exercise modalities have been documented as effective physical therapies to decrease arterial stiffness. However, these land-based exercise modalities may not be suitable for overweight individuals, in terms of risks of joint...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-016-0274-y
更新日期：2016-12-28 00:00:00
abstract：BACKGROUND:Knowing the orientation of the head is important in many fields, including medicine. Many methods and measuring systems exist, but usually they use different markers or sensors attached to the subject's head for head orientation determination. In certain applications these attachments may represent a burden ...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-12-96
更新日期：2013-09-26 00:00:00
abstract：BACKGROUND:Recent studies indicate that the blue-yellow colour discrimination is impaired in ADHD individuals. However, the relationship between colour and performance has not been investigated. This paper describes the development and the testing of a virtual environment that is capable to quantify the influence of re...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-10-74
更新日期：2011-08-19 00:00:00
abstract：BACKGROUND:A common but debated technique in the management of swallowing difficulties is the chin tuck swallow, where the neck is flexed forward prior to swallowing. Natural variations in chin tuck angles across individuals may contribute to the differential effectiveness of the technique. METHODOLOGY:To facilitate t...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-8-25
更新日期：2009-10-07 00:00:00
abstract：BACKGROUND:Intracranial pressure changes during head impact cause brain injuries such as vasogenic edema and cerebral contusion. However, the influence of impulsive pressure on endothelial function has not yet been fully studied in vitro. In this study, we developed a pressure loading device that produced positive and ...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-13-44
更新日期：2014-04-16 00:00:00
abstract：BACKGROUND:Radio Frequency Identification(RFID) has been widely used in healthcare facilities, but it has been paid little attention whether RFID applications are safe enough under healthcare environment. The purpose of this study is to assess the effects of RFID tags on Magnetic Resonance (MR) imaging in a typical ele...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-13-129
更新日期：2014-09-04 00:00:00
abstract：BACKGROUND:We sought to compare uterine cervical electrical impedance spectroscopy measurements employing two probes of different sizes, and to employ a finite element model to predict and compare the fraction of electrical current derived from subepithelial stromal tissue. METHODS:Cervical impedance was measured in 1...
journal_title：Biomedical engineering online
pub_type： 临床试验,杂志文章
doi：10.1186/1475-925X-5-62
更新日期：2006-11-24 00:00:00
abstract：BACKGROUND:In ultrasound imaging systems, the digital transmit beamformer is a critical module that generates accurate control over several transmission parameters. However, such transmit front-end module is not typically accessible to ultrasound researchers. To overcome this difficulty, we have been developing a compa...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-12-24
更新日期：2013-03-20 00:00:00
abstract：BACKGROUND:Clinical diagnosis and therapy for the lumbar disc herniation requires accurate vertebra segmentation. The complex anatomical structure and the degenerative deformations of the vertebrae makes its segmentation challenging. METHODS:An improved level set method, namely edge- and region-based level set method ...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-12-48
更新日期：2013-05-28 00:00:00
abstract：BACKGROUND:It is a known fact that blood flow pattern and more specifically the pulsatile time variation of shear stress on the vascular wall play a key role in atherogenesis. The paper presents the conception, the building and the control of a new in vitro test bench that mimics the pulsatile flows behavior based on i...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-015-0065-x
更新日期：2015-08-07 00:00:00
abstract：BACKGROUND:Xenogeneic bone has been widely used in a variety of clinical bone-related disease to promote bone healing and restore bone defects. However, the adverse effects of immune system limit its application in the clinic. The aim of this study was to evaluate xenogeneic bone safety of immunotoxicity and explore th...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-019-0729-z
更新日期：2019-11-14 00:00:00
abstract：BACKGROUND:Blood pressure (BP) is associated with early atherosclerosis and plaque rupture because the BP variability can significantly affect the blood flow velocity and shear stress over the plaque. However, the mechanical response of BP variability to the plaque remains unclear. Therefore, we investigated the correl...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-13-152
更新日期：2014-11-20 00:00:00
abstract：OBJECTIVES:To compare traditional plaster casts, digital models and 3D printed copies of dental plaster casts based on various criteria. To determine whether 3D printed copies obtained using open source system RepRap can replace traditional plaster casts in dental practice. To compare and contrast the qualities of two ...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-12-49
更新日期：2013-05-31 00:00:00
abstract：:The Editors-in-Chief have retracted this article [1] because, after publication, concerns were raised regarding the study design and statistical analysis. Post-publication review has confirmed firstly that within-group changes were highlighted rather than between-group differences as appropriate for a randomized trial...
journal_title：Biomedical engineering online
pub_type： 杂志文章,撤回出版物
doi：10.1186/s12938-020-0749-8
更新日期：2020-01-24 00:00:00
abstract：BACKGROUND:Surface electromyographic (S-EMG) signal processing has been emerging in the past few years due to its non-invasive assessment of muscle function and structure and because of the fast growing rate of digital technology which brings about new solutions and applications. Factors such as sampling rate, quantiza...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-13-22
更新日期：2014-02-27 00:00:00
abstract：BACKGROUND:A specific problem using the public access defibrillators (PADs) arises at the railway stations. Some countries as Germany, Austria, Switzerland, Norway and Sweden are using AC railroad net power-supply system with rated 16.7 Hz frequency modulated from 15.69 Hz to 17.36 Hz. The power supply frequency contam...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-4-16
更新日期：2005-03-15 00:00:00
abstract：BACKGROUND:Magneto-acoustic tomography with current injection involves using electrical impedance imaging technology. To explore the potential applications in imaging biological tissue and enhance image quality, a new scan mode for the transducer is proposed that is based on translational and circular scanning to recor...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-016-0125-x
更新日期：2016-01-27 00:00:00
abstract：BACKGROUND:In order to characterize the intracranial pressure-volume reserve capacity, the correlation coefficient (R) between the ICP wave amplitude (A) and the mean ICP level (P), the RAP index, has been used to improve the diagnostic value of ICP monitoring. Baseline pressure errors (BPEs), caused by spontaneous shi...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-13-99
更新日期：2014-07-23 00:00:00
abstract：BACKGROUND:Use of standardized and scientifically sound outcome measures is encouraged in clinical practice and research. With the development of newer rehabilitation therapies, we need technology-supported upper extremity outcome measures that are easily accessible, reliable and valid. 3-Dimensional printing (3D-print...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-020-00839-3
更新日期：2021-01-05 00:00:00
abstract：BACKGROUND:Falls can cause trauma, disability and death among older people. Ambulatory accelerometer devices are currently capable of detecting falls in a controlled environment. However, research suggests that most current approaches can tend to have insufficient sensitivity and specificity in non-laboratory environme...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-11-9
更新日期：2012-02-16 00:00:00
abstract：BACKGROUND:The QRS complex is the most noticeable feature in the electrocardiogram (ECG) signal, therefore, its detection is critical for ECG signal analysis. The existing detection methods largely depend on hand-crafted manual features and parameters, which may introduce significant computational complexity, especiall...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-018-0441-4
更新日期：2018-01-29 00:00:00
abstract：INTRODUCTION:The method for measuring intraocular pressure using the Corvis tonometer provides a sequence of images of corneal deformation. Deformations of the cornea are recorded using the ultra-high-speed Scheimpflug camera. This paper presents a new and reproducible method of analysis of corneal deformation images t...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-13-150
更新日期：2014-11-19 00:00:00
abstract：PURPOSE:We propose a collaborative and secure transmission scheme in order to safely and efficiently transmit medical data and provide telemedicine services, lighten the load on wireless access networks, and improve the quality of medical treatment such as surgery. METHODS:First, the transmission technology based on o...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-019-0674-x
更新日期：2019-05-20 00:00:00
abstract：BACKGROUND:Areas with high frequency activity within the atrium are thought to be 'drivers' of the rhythm in patients with atrial fibrillation (AF) and ablation of these areas seems to be an effective therapy in eliminating DF gradient and restoring sinus rhythm. Clinical groups have applied the traditional FFT-based a...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-016-0143-8
更新日期：2016-03-08 00:00:00
