Article
Surgery
Xuesong Dai, Yongde Zhang, Jingang Jiang, Shu Zhang
Summary: This study investigates the use of an auxiliary needle insertion guide based on corrective forces for transrectal prostate brachytherapy. The guide effectively reduces needle deflection and its efficacy is experimentally verified. Optimal puncture parameters are determined through optimization, resulting in improved puncture accuracy.
INTERNATIONAL JOURNAL OF MEDICAL ROBOTICS AND COMPUTER ASSISTED SURGERY
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Stefan Gerlach, Frank-Andre Siebert, Alexander Schlaefer
Summary: The purpose of this study is to efficiently address uncertainty during inverse planning for HDR BT in order to robustly optimize the pose of the needles before insertion, that is, to facilitate path planning for robotic needle placement.
Article
Multidisciplinary Sciences
Emanuele Perra, Eetu Lampsijarvi, Goncalo Barreto, Muhammad Arif, Tuomas Puranen, Edward Haeggstrom, Kenneth P. H. Pritzker, Heikki J. Nieminen
Summary: The study demonstrated how nonlinear ultrasonics extends the functionality of medical needles, with observed nonlinear phenomena quantitatively characterized. The SonoLancet increased tissue yield in fine-needle biopsy applications and may be useful for other medical applications.
SCIENTIFIC REPORTS
(2021)
Article
Medicine, General & Internal
Suzhen Du, Yanbo Zhang, Hui Wang, Yan Fan, Bao-Jie Jiao, Dong-Ni Wang, Man-Man Qi, Xiu-Wei Sun
Summary: This study compared the clinical advantages of trocar and steel needle in deep venipuncture catheterization. The results showed that the trocar group had better puncture comfort, higher successful catheter insertion, shorter puncture time, lower incidence of thrombosis, catheter fever, bleeding, and infection compared to the steel needle group.
Article
Engineering, Biomedical
Chao Wang, Yesenia Gonzalez, Chenyang Shen, Brian Hrycushko, Xun Jia
Summary: The proposed algorithm in this study can select needle catheter positions and determine dwell time for preplanning of prostate cancer HDR brachytherapy, resulting in plans with increased median conformity index and slightly lower median homogeneity index, while reducing the number of selected needles.
PHYSICS IN MEDICINE AND BIOLOGY
(2021)
Article
Oncology
Ann Henry, Bradley R. Pieters, Frank Andre Siebert, Peter Hoskin
Summary: This evidence-based guideline provides updated guidance on prostate brachytherapy, a treatment technique for non-metastatic prostate cancer using permanent or temporary implantation. Prostate brachytherapy allows for safe radiation dose escalation and improved PSA control compared to external beam radiotherapy alone.
RADIOTHERAPY AND ONCOLOGY
(2022)
Article
Multidisciplinary Sciences
Renata Gebara Sampaio Doria, Gustavo Morandini Reginato, Yumi de Barcelos Hayasaka, Paulo Fantinato Neto, Danielle Passarelli, Julia de Assis Arantes
Summary: The study aimed to evaluate complications of cecal trocarization in healthy horses using a cattle trocar and a cecal needle. The results showed that cecal trocarization caused peritonitis, but the use of a cecal needle was safer compared to a cattle trocar. Therefore, the cecal needle should be preferred for treating horses with cecal gas distension.
Article
Oncology
Mark T. Corkum, Mark K. Buyyounouski, Albert J. Chang, Hans T. Chung, Peter Chung, Brett W. Cox, Juanita M. Crook, Brian J. Davis, Steven J. Frank, Ivan Henriquez, Eric M. Horwitz, Peter Hoskin, I-Chow Hsu, Mira Keyes, Martin T. King, Marisa A. Kollmeier, Daniel J. Krauss, Andrzej M. Kukielka, Gerard Morton, Peter F. Orio III, Bradley R. Pieters, Louis Potters, Peter J. Rossi, Timothy N. Showalter, Abhishek A. Solanki, Daniel Song, Ben Vanneste, Eric Vigneault, Piotr A. Wojcieszek, Michael J. Zelefsky, Mitchell Kamrava
Summary: Salvage prostate brachytherapy is an effective and well tolerated treatment option for biochemically recurrent prostate cancer. International experts reached consensus on the use and preferred technical considerations for salvage prostate brachytherapy. While there were areas of consensus in patient selection, there were also areas of controversy in treatment techniques.
RADIOTHERAPY AND ONCOLOGY
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Eric E. Brost, Bradley J. Stish, Christine U. Lee, Matthew W. Urban, Christopher L. Deufel
Summary: This study aimed to improve the visibility of high-dose rate (HDR) brachytherapy needles under B-mode ultrasound imaging by applying an echogenic surface coating. The results showed that the echogenic coating reduced imaging artifacts, improved needle contrast, and the improvement increased with increasing coating thickness.
Article
Biology
Rahul Nadda, Ramjee Repaka, Ashish Kumar Sahani
Summary: This study proposes a revolutionary bioinspired needle design for bone marrow biopsy procedures. The finite element method analysis shows that stresses are concentrated around the bioinspired needle tip and barbs during the needle insertion process. These needles reduce insertion force and tip deflection. The proposed bioinspired barbed biopsy needle design could be used to create novel biopsy needles for successful and minimally invasive piercing operations.
COMPUTERS IN BIOLOGY AND MEDICINE
(2023)
Article
Oncology
Moeen Meftahi, Richard Lei Jingyi Qiu, Pretesh Patel, William Youngjae Song, Xiaofeng Yang
Summary: The study proposes a novel technique called direction modulated brachytherapy (DMBT), which involves adding a platinum shield inside the needle to reduce urethral dose while maintaining target coverage in prostate cancer patients. The DMBT technique is relatively easy to implement and offers a safe and effective treatment option.
RADIOTHERAPY AND ONCOLOGY
(2023)
Article
Oncology
Marnix J. A. Rasing, Max Peters, Marieke van Son, Marinus A. Moerland, Wietse Eppinga, Sandrine M. G. van de Pol, Juus Noteboom, Jan Lagendijk, Jochem R. N. van der Voort vanZyp
Summary: The purpose of this study was to investigate the recurrence characteristics in patients treated with focal salvage HDR brachytherapy. The results showed that after 19 Gy HDR brachytherapy, subsequent recurrences were mainly local and in-field.
RADIOTHERAPY AND ONCOLOGY
(2023)
Article
Oncology
Justine M. Dupere, Eric E. Brost, Susheil Uthamaraj, Christine U. Lee, Matthew W. Urban, Bradley J. Stish, Christopher L. Deufel
Summary: The purpose of this study is to improve the ultrasound visibility of high-dose rate (HDR) brachytherapy needles by modifying the surface of the needles to produce a color Doppler twinkling signature. Surface modifications including laser-scribing, application of polymethyl methacrylate (PMMA), and coating with an echogenic coating were performed on standard 17-gauge titanium HDR brachytherapy needles. The results showed that the modified needles produced a twinkling signature on color Doppler ultrasound, which was not observed in unmodified needles. This method can enhance the visibility of brachytherapy applicators, aiding in their placement and digitization.
Article
Engineering, Biomedical
Hyejoo Kang, Alexander R. Podgorsak, Bhanu Prasad Venkatesulu, Anjali L. Saripalli, Brian Chou, Abhishek A. Solanki, Matthew Harkenrider, Steven Shea, John C. Roeske, Mohammed Abuhamad
Summary: This study aims to generate synthetic MRI images with sufficient soft-tissue contrast from CT scans using a generative adversarial network. The accuracy of prostate segmentation on the synthetic MRI images is comparable to that on the real MRI images. The PxCGAN model outperforms other models in terms of soft-tissue contrast. The findings of this study are significant.
PHYSICS IN MEDICINE AND BIOLOGY
(2023)
Article
Engineering, Multidisciplinary
Sharad Raj Acharya, Parsaoran Hutapea
Summary: Active needles with bioinspired features, such as mosquito-inspired cannula design and vibrational insertion method, show improved performance in terms of reduced insertion force, increased tip deflection, reduced trajectory tracking error, and decreased control effort. These features have the potential to enhance needle placement accuracy and minimize complications in percutaneous procedures.
BIOINSPIRATION & BIOMIMETICS
(2023)
Editorial Material
Peripheral Vascular Disease
William F. Weitzel, Nirmala Rajaram, Yihao Zheng, Brian J. Thelen, Venkataramu N. Krishnamurthy, James Hamilton, Miguel Angel Funes Lora, Timothy Morgan, Albert J. Shih, Lennar Yessayan
Summary: This study used novel open source software based on an ultrasound speckle tracking algorithm to examine the distensibility of the vessel wall before and after two procedures. The results showed that it is technically feasible to measure subtle vessel wall motion changes with high resolution using DICOM ultrasound data.
JOURNAL OF VASCULAR ACCESS
(2022)
Article
Computer Science, Interdisciplinary Applications
Robert S. Chisena, Jordan Sengenberger, Albert J. Shih, Hitinder Gurm
Summary: The study aimed to develop a preclinical testing method for evaluating the efficacy of noncompliant balloon angioplasty treatment in human ex vivo calcified plaque. Three-dimensional microcomputed tomography imaging was used to compare crack density in the plaque pre- and post-treatment, revealing glass-like cracking post-treatment.
MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING
(2021)
Article
Engineering, Biomedical
Annie D. R. Li, Yang Liu, Jeffrey Plott, Lei Chen, Jeffrey S. Montgomery, Albert Shih
Summary: This study established a novel model to predict needle deflection and tissue deformation, showing that a new multi-bevel needle design with the tissue separation point below the needle groove face can significantly reduce deflection magnitude and maintain long tissue sampling length. The findings provide critical design criteria for biopsy needles and can potentially improve cancer diagnostic accuracy and other procedures requiring accurate needle insertion.
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
(2021)
Letter
Anesthesiology
Ramon E. Abola, Jonathon Schwartz, Tazeen Beg, Tong J. Gan, Joseph Forrester
ANESTHESIA AND ANALGESIA
(2021)
Article
Clinical Neurology
Y. Liu, D. Gebrezgiabhier, Y. Zheng, A. J. Shih, N. Chaudhary, A. S. Pandey, J. L. A. Larco, S. Madhani, M. Abbasi, A. H. Shahid, R. A. Quinton, R. Kadirvel, W. Brinjikji, D. F. Kallmes, L. E. Savastano
Summary: This study provides clinical and preclinical evidence of intracranial arterial collapse during aspiration thrombectomy. The study found that a larger catheter size, lower perfusion pressure, and smaller arteries were associated with a higher probability of arterial collapse.
AMERICAN JOURNAL OF NEURORADIOLOGY
(2022)
Article
Engineering, Manufacturing
Yue Zhang, Jose A. Robles-Linares, Lei Chen, Zhirong Liao, Albert J. Shih, Chengyong Wang
Summary: This paper reviews the structure and properties of hard tissues, the cutting mechanisms, and the damages caused during the machining process. The solution strategies for minimizing damages and future research prospects in hard tissue machining are also evaluated.
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE
(2022)
Article
Orthopedics
Miguel A. Funes-Lora, Ryan Posh, Jeffrey Wensman, Albert J. Shih
Summary: This study explored the feasibility and durability of a segmented AFO suitable for 3D printing, and successfully manufactured a durable 3D printed AFO for daily activities. The AFO allows for quick adjustment of bending stiffness through an interchangeable strut design.
PROSTHETICS AND ORTHOTICS INTERNATIONAL
(2022)
Article
Engineering, Electrical & Electronic
Ketut B. Putra, Xiaoqing Tian, Albert J. Shih
Summary: A fully soft and conformable sensor that can measure contact stresses on two-axis has been designed and fabricated using finite element analysis (FEA) and direct ink writing (DIW). The sensor consists of a silicone receptor and two microfluidic channels filled with liquid metal, with the resistance changing depending on the shear and compressive stresses. The FEA and DIW approach has been validated, and the sensor is capable of measuring shear and compressive stresses.
IEEE SENSORS JOURNAL
(2022)
Review
Anesthesiology
Nicole R. Guinn, Jonathon Schwartz, Rakesh C. Arora, Vicki Morton-Bailey, Solomon Aronson, Charles Scott Brudney, Elliott Bennett-Guerrero
Summary: Preoperative anemia and iron deficiency are common in patients undergoing cardiac surgery and are associated with increased risks of adverse outcomes. Current guidelines support diagnosing and treating before surgery, but details on screening and treatment methods remain unclear.
ANESTHESIA AND ANALGESIA
(2022)
Article
Cardiac & Cardiovascular Systems
Michael C. Grant, Desiree Chappell, Tong J. Gan, Michael W. Manning, Timothy E. Miller, Jessica L. Brodt
Summary: This article presents recommendations for optimal pain management and opioid stewardship for cardiac surgery patients based on literature appraisal and expert consensus. The recommendations include avoiding high-dose opioids, increasing the use of nonopioid medications and regional anesthesia techniques, enhancing patient and provider education, and implementing structured system-level opioid prescription practices.
JOURNAL OF THORACIC AND CARDIOVASCULAR SURGERY
(2023)
Article
Anesthesiology
Jessica K. Brown, Andrew D. Shaw, Monty G. Mythen, Lou Guzzi, V. Seenu Reddy, Cheryl Crisafi, Daniel T. Engelman
Summary: This report provides expert recommendations for improving patient outcomes in cardiac surgery-associated acute kidney injury (CSA-AKI). A total of 13 recommendations, covering the preoperative, intraoperative, and postoperative phases, were formulated based on a multidisciplinary conference and comprehensive evidence review.
JOURNAL OF CARDIOTHORACIC AND VASCULAR ANESTHESIA
(2023)
Article
Engineering, Biomedical
Tianshu Dong, Lei Chen, Paras R. Patel, Julianna M. Richie, Cynthia A. Chestek, Albert J. Shih
Summary: The machine described in this study automates the assembly of high-density carbon fiber (HDCF) arrays, eliminating the need for manual labor and improving accuracy and repeatability. The machine includes a roller-based carbon fiber extruder, a motion system with linear and rotary stages, an imaging system with digital microscope cameras, and a laser cutter. It is capable of precisely handling carbon fiber electrodes (CFEs) and accurately placing them on silicon support shanks. The use of this machine is significant for achieving fully automated HDCF array assembly and batch production.
JOURNAL OF NEURAL ENGINEERING
(2023)
Article
Mechanics
Ying Liu, Matthew Hildner, Omkar Roy, William A. van den Bogert, James Lorenz, Maude Desroches, Kurt Koppi, Albert Shih, Ronald G. Larson
Summary: Direct ink writing is used to print various PDMS mixtures, including PDMS-fumed silica mixtures and two-part commercial liquid or vulcanizing silicone rubbers. The printability of these materials is correlated with rheological measurements, but not any single test alone. It is a combination of material strength and recoverability that determines their printability.
JOURNAL OF RHEOLOGY
(2023)
Article
Engineering, Biomedical
Jessie Jingxuan Lyu, Yao Liu, Hitinder S. Gurm, Albert Shih, Yihao Zheng
Summary: A miniature grinding wheel was successfully fabricated for atherectomy to remove calcified plaques in coronary and peripheral arteries. The wheel was made by nickel-diamond electroplating on a thin, flexible hollow stainless steel drive shaft. Experimental validation showed that the wheel effectively removed the calcified plaque. This research could lead to a more effective and safer treatment device for lesions deep in coronary and peripheral arteries.
MEDICAL ENGINEERING & PHYSICS
(2023)
Article
Anesthesiology
Jonathon A. Schwartz, Jamie L. Romeiser, Reona Kimura, Lisa Senzel, Dennis Galanakis, Darcy Halper, Shayla Mena, Elliott Bennett-Guerrero
Summary: This study evaluated the impact of chamomile intake on prothrombin time (PT) through a randomized, placebo-controlled crossover study design. The results showed that both chamomile tea and chamomile extract capsule did not prolong PT. Therefore, it may be safe for patients not taking warfarin to consume chamomile before surgery.
PERIOPERATIVE MEDICINE
(2023)
