649 results match your criteria needle navigation

Towards quantitative and intuitive percutaneous tumor puncture via augmented virtual reality.

Comput Med Imaging Graph 2021 Mar 31;90:101905. Epub 2021 Mar 31.

Department of Computer Science and Engineering, Chinese University of Hong Kong, Hong Kong SAR, China.

In recent years, the radiofrequency ablation (RFA) therapy has become a widely accepted minimal invasive treatment for liver tumor patients. However, it is challenging for doctors to precisely and efficiently perform the percutaneous tumor punctures under free-breathing conditions. This is because the traditional RFA is based on the 2D CT Image information, the missing spatial and dynamic information is dependent on surgeons' experience. Read More

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Navigation-guided percutaneous pelvic cementoplasty for metastatic bone pain: A case report.

Medicine (Baltimore) 2021 Apr;100(15):e25521

Department of Anesthesiology and Pain Medicine.

Rationale: Percutaneous cementoplasty is a minimally invasive procedure that can provide immediate pain relief and improve range of motion in patients with metastatic bone pain. Conventionally, this procedure is guided by computed tomography (CT). However, to minimize exposure to radiation, we performed percutaneous cementoplasty under the guidance of a navigation system. Read More

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Diagnostic yield and safety of biopsy guided by electromagnetic navigation bronchoscopy for high-risk pulmonary nodules.

Thorac Cancer 2021 Mar 21. Epub 2021 Mar 21.

Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.

Background: Electromagnetic navigation bronchoscopy (ENB) is a useful method to obtain tissue for peripheral lung nodules. We aimed to understand the diagnostic yield and safety profile in high-risk pulmonary nodules that cannot be accessed by percutaneous transthoracic needle biopsy.

Methods: In this single-center retrospective study, we reviewed patients who underwent ENB for high-risk pulmonary nodules. Read More

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Imaging-guided radiofrequency ablation of osteoid osteoma in typical and atypical sites: Long term follow up.

PLoS One 2021 18;16(3):e0248589. Epub 2021 Mar 18.

Radiologia Interventistica, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Napoli (IT), Naples, Italy.

Purpose: To assess efficacy and safety of imaging-guided radiofrequency ablation (RFA) of Osteoid Osteoma (OO) in both typical and atypical sites.

Methods And Materials: Between January 2014 and March 2019, 102 consecutive percutaneous RFA were performed and retrospectively reviewed. The procedures were performed using a RFA bipolar ablation system (Covidien, exposed tip of 0. Read More

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Diagnostic Yield of Digital Tomosynthesis-assisted Navigational Bronchoscopy for Indeterminate Lung Nodules.

J Bronchology Interv Pulmonol 2021 Mar 17. Epub 2021 Mar 17.

Division of Allergy, Pulmonary and Critical Care Medicine Department of Biostatistics The Division of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN Division of Pulmonary Critical Care and Sleep Medicine, The Ohio State University Wexner Medical Center, Columbus, OH.

Background: Navigational bronchoscopy is commonly used to sample lung nodules, with a better safety profile but lower diagnostic yield than computerized tomography-guided transthoracic needle biopsy. The addition of digital tomosynthesis to electromagnetic navigation, using intraprocedural images obtained from a C-arm fluoroscope to identify target lesion location and update navigational guidance, may improve diagnostic yield.

Methods: Consecutive bronchoscopies using tomosynthesis-assisted fluoroscopic electromagnetic navigational bronchoscopy (F-ENB) at a single institution over a 1-year period were included. Read More

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Lesion characteristics affecting yield of electromagnetic navigational bronchoscopy.

Respir Med 2021 Mar 6;180:106357. Epub 2021 Mar 6.

Columbus Regional Health, Department of Pulmonary & Critical Care, United States.

Rationale: Electromagnetic navigational bronchoscopy (ENB) is an important, minimally invasive diagnostic tool for malignant and benign peripheral lung lesions, offering lower complication risks than transthoracic needle aspirations. As a relatively new technology, the best sampling modality and lesion characteristics for ENB has yet to be determined. We evaluated the sensitivity and diagnostic yield of different sampling modalities (needle aspiration, brush biopsy, transbronchial forceps biopsies) and radiographical lesion characteristics by Tsuboi classification. Read More

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A narrative review of invasive diagnostics and treatment of early lung cancer.

Transl Lung Cancer Res 2021 Feb;10(2):1110-1123

Department of Thoracic Surgery, Medical University of Gdansk, Gdansk, Poland.

The diagnosis and treatment of early-stage lung cancer remains a clinical challenge. The broadening implementation of lung cancer screening has resulted in positive findings in numerous patients that are mostly non-malignant. Many other patients have indeterminate nodules that are difficult to assess through simple observation. Read More

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February 2021

Image-guided robots for low dose rate prostate brachytherapy: Perspectives on safety in design and use.

Int J Med Robot 2021 Feb 5:e2239. Epub 2021 Feb 5.

Robotics & Engineering Research Center, Harbin University of Science and Technology, Harbin, China.

Background: Image-guided brachytherapy (BT) robots can be used to assist urologists during seed implantation, thereby improving therapeutic effects. However, safety issues must be considered in the design of such robots, including their structure, mechanical movements, function, materials and actuators. Previous reviews focused on image-guided prostate BT robot technology (e. Read More

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February 2021

Percutaneous transorbital direct puncture to obliterate a cavernous sinus dural arteriovenous fistula.

J Neurointerv Surg 2021 Mar 8. Epub 2021 Mar 8.

Radiology, New York University Langone Health, New York, New York, USA.

Cavernous sinus dural arteriovenous fistulas (CS-DAVF) can have an indolent course, with insidious onset, but still showing a high likelihood of spontaneous resolution.1 Nevertheless, symptoms in a subset of patients evolve more rapidly, with malignant signs on imaging, warranting intervention.2 We report on a patient in his 40s presenting with redness and proptosis of the right eye, intermittent blurred vision and diplopia. Read More

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Automatically Addressing System for Ultrasound-Guided Renal Biopsy Training Based on Augmented Reality.

IEEE J Biomed Health Inform 2021 Mar 8;PP. Epub 2021 Mar 8.

Chronic kidney disease has become one of the diseases with the highest morbidity and mortality in kidney diseases, and there are still some problems in surgery. During the operation, the surgeon can only operate on two-dimensional ultrasound images and cannot determine the spatial position relationship between the lesion and the medical puncture needle in real-time. The average number of punctures per patient will reach 3 to 4, Increasing the incidence of complications after a puncture. Read More

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Use of intra-operative stimulation of brainstem lesion target sites for frameless stereotactic biopsies.

Childs Nerv Syst 2021 Mar 8. Epub 2021 Mar 8.

Department of Neurophysiology, Nelson Mandela Children's Hospital, Johannesburg, South Africa.

Introduction: Frameless stereotactic navigation is used to direct the trajectory and biopsy site of target lesions. We report on a novel intra-operative stimulating (IOS) probe that is integrated into a commercially available stereotactic biopsy needle with the rationale that stimulation of the intended biopsy site should predict functional tissue thus preventing inadvertent biopsy of eloquent tissue.

Methods: Patients undergoing brainstem biopsies for atypical lesions were offered the additional stimulation procedure. Read More

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The Impact of Neonatal Methamphetamine on Spatial Learning and Memory in Adult Female Rats.

Front Behav Neurosci 2021 18;15:629585. Epub 2021 Feb 18.

Department of Physiology, Third Faculty of Medicine, Charles University, Prague, Czechia.

The present study was aimed at evaluating cognitive changes following neonatal methamphetamine exposure in combination with repeated treatment in adulthood of female Wistar rats. Pregnant dams and their pups were used in this study. One half of the offspring were treated indirectly the breast milk of injected mothers, and the other half of pups were treated directly by methamphetamine injection. Read More

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February 2021

Rupture detection during needle insertion using complex OCT data and CNNs.

IEEE Trans Biomed Eng 2021 Mar 2;PP. Epub 2021 Mar 2.

Objective: Soft tissue deformation and ruptures complicate needle placement. However, ruptures at tissue inter- faces also contain information which helps physicians to navigate through different layers. This navigation task can be challenging, whenever ultrasound (US) image guidance is hard to align and externally sensed forces are superimposed by friction. Read More

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Look at the compass needle and see your course - navigation as a cancer survivor.

Acta Oncol 2021 Apr 1;60(4):401-402. Epub 2021 Mar 1.

Survivorship and Inequality in Cancer, Danish Cancer Research Center, Copenhagen, Denmark.

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Real-time ultrasound virtual navigation in 3D PET/CT volumes for superficial lymph node evaluation: an innovative fusion examination.

Ultrasound Obstet Gynecol 2021 Feb 15. Epub 2021 Feb 15.

Dipartimento Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.

Objective: To evaluate the feasibility and clinical applications of Fusion Virtual Navigation of F-FDG PET/CT (PET/CT) and ultrasound images in assessing superficial lymph nodes in breast and gynecological cancer patients.

Methods: This is a single-center pilot study. Consecutive patients with breast or gynecological cancer with abnormal uptake of axillary or groin lymph nodes on PET/CT scan, also submitted to ultrasound assessment, were enrolled between January 2017 and May 2019. Read More

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February 2021

Navigated Recovery of Fractured Dental Injection Needles: Case Report and Suggestions for Management during Pandemic Crises.

Case Rep Dent 2021 16;2021:8820381. Epub 2021 Jan 16.

Department of Oral, Maxillofacial and Facial Plastic Surgery, University Hospital Düsseldorf, Düsseldorf, Germany.

Dislocation of a fractured hypodermic needle is a complication requiring immediate and adequate emergency treatment. In this case report, 3D navigation is evaluated for its use to recover a quickly moving fractured needle. The needle was recovered safely, but it could be demonstrated that navigational planning has to be conducted right before surgery and other navigational tools, such as ultrasound, should be considered as well. Read More

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January 2021

[Development of Magnetic Anchoring Lung Nodule Positioning Device].

Zhongguo Yi Liao Qi Xie Za Zhi 2021 Feb;45(1):32-36

Department of Thoracic Surgery, First Affliated Hospital of Xi'an Jiaotong University, Xi'an, 710061.

The magnetic anchoring lung nodule positioning device is composed of a target magnet, an anchor magnet, a coaxial puncture needle and a puncture navigation template, through these, a new type of accurate positioning technology for small pulmonary nodules is derived. The device inserts the target magnet into the both sides nearby the lung nodule under the guidance of CT. Helped by the mutual attraction of the two target magnets, they can be fixed in the lung tissue, avoiding the movement in the lung, and accurately positioning the target lung nodule before surgery. Read More

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February 2021

Real-Time Ultrasound Image Fusion with FDG-PET/CT to Perform Fused Image-Guided Fine-Needle Aspiration in Neck Nodes: Feasibility and Diagnostic Value.

AJNR Am J Neuroradiol 2021 03 28;42(3):566-572. Epub 2021 Jan 28.

Head and Neck Surgery and Oncology (M.v.d.B.).

Background And Purpose: New imaging techniques such as hybrid imaging of ultrasound and FDG-PET/CT are available but not yet investigated for node staging. The aim of the study was to evaluate the feasibility and added diagnostic value of real-time image-fused ultrasound-guided fine-needle aspiration with FDG-PET/CT data for node staging.

Materials And Methods: Ninety-six patients who were referred for cervical lymph node staging with FDG-PET/CT before ultrasound were prospectively included. Read More

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Clinical application of a surgical navigation system for the retrieval of fractured dental needles.

Br J Oral Maxillofac Surg 2021 Feb 8;59(2):256-257. Epub 2020 Dec 8.

Division of Oral & Maxillofacial Surgery, Dental Department, China Medical University Hospital, Taichung, Taiwan; College of Dentistry, China Medical University, Taichung, Taiwan. Electronic address:

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February 2021

Robot-assisted percutaneous vertebroplasty under local anaesthesia for osteoporotic vertebral compression fractures: a retrospective, clinical, non-randomized, controlled study.

Int J Med Robot 2021 Jan 16. Epub 2021 Jan 16.

Department of Orthopedics, Chinese PLA General Hospital, Beijing, China.

Research And Design: A retrospective, clinical, non-randomized, controlled study.

Objective: To evaluate the application of a new spinal navigation robot on percutaneous vertebroplasty (PVP) under local anaesthesia.

Methods: The result of inserting the puncture needle into the simulated pedicle was observed in vitro. Read More

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January 2021

Comparison of Smartphone Augmented Reality, Smartglasses Augmented Reality, and 3D CBCT-guided Fluoroscopy Navigation for Percutaneous Needle Insertion: A Phantom Study.

Cardiovasc Intervent Radiol 2021 Jan 6. Epub 2021 Jan 6.

Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, 20892, USA.

Purpose: To compare needle placement performance using an augmented reality (AR) navigation platform implemented on smartphone or smartglasses devices to that of CBCT-guided fluoroscopy in a phantom.

Materials And Methods: An AR application was developed to display a planned percutaneous needle trajectory on the smartphone (iPhone7) and smartglasses (HoloLens1) devices in real time. Two AR-guided needle placement systems and CBCT-guided fluoroscopy with navigation software (XperGuide, Philips) were compared using an anthropomorphic phantom (CIRS, Norfolk, VA). Read More

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January 2021

The Impact of Biopsy Tool Choice and Rapid On-Site Evaluation on Diagnostic Accuracy for Malignant Lesions in the Prospective: Multicenter NAVIGATE Study.

J Bronchology Interv Pulmonol 2020 Dec 22;Publish Ahead of Print. Epub 2020 Dec 22.

Department of Pulmonary, Allergy and Critical Care Medicine, Cleveland Clinic Department of Thoracic and Esophageal Surgery, University Hospitals, Cleveland, OH Department of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA Departments of Surgery Interventional Pulmonology, Section of Thoracic Surgery, Inova Health System, Virginia Cancer Specialists, Fairfax, VA Department of Pulmonary & Critical Care Medicine, Pinehurst Medical Clinic and First Health Moore Regional Hospital, Pinehurst Department of Pulmonary Care, Atrium Health and Levine Cancer Institute, Charlotte, NC Department of Pulmonology, Blount Memorial Physicians Group Alcoa Department of Interventional Pulmonology, Vanderbilt University Medical Center, Ingram Cancer Center, Nashville, TN Department of Lung Cancer Clinic, University of Michigan, Ann Arbor, MI Departments of Biostatistics Medical Affairs, Medtronic, Minneapolis, MN.

Background: The diagnostic yield of electromagnetic navigation bronchoscopy (ENB) is impacted by biopsy tool strategy and rapid on-site evaluation (ROSE) use. This analysis evaluates usage patterns, accuracy, and safety of tool strategy and ROSE in a multicenter study.

Methods: NAVIGATE (NCT02410837) evaluates ENB using the superDimension navigation system (versions 6. Read More

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December 2020

Flow driven robotic navigation of microengineered endovascular probes.

Nat Commun 2020 12 22;11(1):6356. Epub 2020 Dec 22.

Institute of Mechanical Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015, Lausanne, Switzerland.

Minimally invasive medical procedures, such as endovascular catheterization, have considerably reduced procedure time and associated complications. However, many regions inside the body, such as in the brain vasculature, still remain inaccessible due to the lack of appropriate guidance technologies. Here, experimentally and through numerical simulations, we show that tethered ultra-flexible endovascular microscopic probes can be transported through tortuous vascular networks with minimal external intervention by harnessing hydrokinetic energy. Read More

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December 2020

Impact of needle positioning on ablation success of irreversible electroporation: a unicentric retrospective analysis.

Sci Rep 2020 12 14;10(1):21902. Epub 2020 Dec 14.

Clinic for Diagnostic and Interventional Radiology, Heidelberg University Hospital, Im Neuenheimer Feld 420, 69120, Heidelberg, Germany.

Irreversible electroporation (IRE) is an ablation procedure in which cell death is induced by ultrashort electrical pulses. In this unicentric retrospective study we investigated the influence of needle positioning on ablation success. 15 IREs with residual tumor after ablation, detected in the first follow-up MRI, were included, and compared with 30 successful ablations. Read More

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December 2020

Current Novel Advances in Bronchoscopy.

Front Surg 2020 16;7:596925. Epub 2020 Nov 16.

Department of Cardiothoracic Surgery, New York University Langone Health, New York, NY, United States.

Screening for lung cancer has changed substantially in the past decade since The National Lung Screening Trial. The resultant increased discovery of incidental pulmonary nodules has led to a growth in the number of lesions requiring tissue diagnosis. Bronchoscopy is one main modality used to sample lesions, but peripheral lesions remain challenging for bronchoscopic biopsy. Read More

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November 2020

Navigated laparoscopic microwave ablation of tumour mimics in pig livers: a randomized ex-vivo experimental trial.

Surg Endosc 2020 Dec 7. Epub 2020 Dec 7.

Department of General, Visceral, Cancer and Transplant Surgery, University of Cologne, Faculty of Medicine and University Hospital Cologne, Kerpener Straße 62, 50937, Cologne, Germany.

Background: In order to efficiently perform laparoscopic microwave ablation of liver tumours precise positioning of the ablation probe is mandatory. This study evaluates the precision and ablation accuracy using the innovative laparoscopic stereotactic navigation system CAS-One-SPOT in comparison to 2d ultrasound guided laparoscopic ablation procedures.

Methods: In a pig liver ablation model four surgeons, experienced (n = 2) and inexperienced (n = 2) in laparoscopic ablation procedures, were randomized for 2d ultrasound guided laparoscopic or stereotactic navigated laparoscopic ablation procedures. Read More

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December 2020

Feasibility of Augmented Reality-Guided Transjugular Intrahepatic Portosystemic Shunt.

J Vasc Interv Radiol 2020 Dec;31(12):2098-2103

Department of Interventional Radiology, Chinese PLA General Hospital, Fuxing Road 28, Haidian District, Beijing 100853, China. Electronic address:

Purpose: To investigate an augmented reality (AR)-guided endovascular puncture to facilitate successful transjugular intrahepatic portosystemic shunt (TIPS).

Materials And Methods: An AR navigation system for TIPS was designed. Three-dimensional (3D) liver models including portal and hepatic vein anatomy were extracted from preoperative CT images. Read More

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December 2020

A New Technique that Combines Navigation-Assisted Lateral Interbody Fusion and Percutaneous Placement of Pedicle Screws in the Lateral Decubitus Position with the Surgeon Using Wearable Smart Glasses: A Small Case Series and Technical Note.

World Neurosurg 2021 Feb 24;146:232-239. Epub 2020 Nov 24.

Department of Orthopaedic Surgery, Tokai University School of Medicine, Kanagawa, Japan.

Background: We describe a new technique that combines navigation-assisted extreme lateral interbody fusion (NALIF) and percutaneous placement of pedicle screws in the lateral decubitus position with the surgeon using wearable smart glasses.

Methods: We explain our method for nonfluoroscopic NALIF and single-position (SP)- percutaneous pedicle screw (PPS) surgery for patients with degenerative lumbar diseases using wearable smart glasses. The wearable smart glasses provide a semitransparent overlay of the navigation information onto the image seen through the lenses. Read More

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February 2021

Accurate and Minimally Invasive Cervical Pedicle Screw Insertion Procedure Using the Bone Biopsy Needle as Drill Guide.

Spine Surg Relat Res 2020 26;4(4):358-364. Epub 2020 Feb 26.

Department of Orthopaedic Surgery, Tohoku University Graduated School of Medicine, Sendai, Japan.

Introduction: Cervical pedicle screw (CPS) fixation provides the strongest mechanical stability. It needs, however, wide soft tissue detachment to expose the entry point and carries the potential risk of iatrogenic damage to neurovascular structures. Malposition of the CPS cannot be completely avoided even using the navigation system. Read More

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February 2020

New developments in catheter ablation for patients with congenital heart disease.

Expert Rev Cardiovasc Ther 2021 Jan 13;19(1):15-26. Epub 2020 Nov 13.

Montreal Heart Institute, Université De Montréal , Montreal, Canada.

: There are numerous challenges to catheter ablation in patients with congenital heart disease (CHD), including access to cardiac chambers, distorted anatomies, displaced conduction systems, multiple and/or complex arrhythmia substrates, and excessively thickened walls, or interposed material. : Herein, we review recent developments in catheter ablation strategies for patients with CHD that are helpful in addressing these challenges. : Remote magnetic navigation overcomes many challenges associated with vascular obstructions, chamber access, and catheter contact. Read More

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January 2021