Design and implementation of a patient-specific cognitive engine for robotic needle insertion

2016 ◽  
Author(s):  
Xiaoyu Tan ◽  
Chin-Boon Chng ◽  
Bin Duan ◽  
Yvonne Ho ◽  
Rong Wen ◽  
...  
Keyword(s):  
Needle Insertion ◽  
Patient Specific ◽  
Cognitive Engine ◽  
Design And Implementation

In-Vivo Obstetric Pressure Measurements for Patient-Specific Epidural Simulator

2014 ◽  
Author(s):  
Neil Vaughan ◽  
Venketesh N. Dubey ◽  
Michael Y. K. Wee ◽  
Richard Isaacs
Keyword(s):  
Needle Insertion ◽  
Epidural Needle ◽  
Patient Specific ◽  
Pressure Measurements ◽  
Epidural Pressure ◽  
Loss Of Resistance ◽  
New Finding ◽  
The Mean ◽  
Thickness Measurements

The aim of this study was to measure changing pressures during Tuohy epidural needle insertions for obstetric parturients of various BMI. This has identified correlations between BMI and epidural pressure. Also we investigated links between BMI and the thicknesses and depths of ligaments and epidural space as measured from MRI and ultrasound scans. To date there have been no studies relating epidural pressure and ligament thickness changes with varying Body Mass Indices (BMI). Further goals following measurement of pressure differences between various BMI patients, were to allow a patient-specific epidural simulator to be developed, which has not been achieved before. The trial has also assessed the suitability of our in-house developed wireless pressure measurement device for use in-vivo. Previously we conducted needle insertion trial with porcine for validation of the measurement system. Results showed that for each group average pressures during insertion decrease as BMI increases. Pressure measurements obtained from the patients were matched to tissue thickness measurements from MRI and ultrasound scans. The mean Loss of Resistance (LOR) pressure in each group reduces as BMI increases. Variation in the shape of the pressure graphs was noticed between two epiduralists performing the procedure, suggesting each anaesthetist may have a signature graph shape. This is a new finding which offers potential use in epidural training and assessment. It can be seen that insertions performed by the first epiduralist have a higher pressure range than insertions performed by second epiduralist.

scholarly journals Sensor-Less Fully Transperineal Fusion-Guided Prostate Biopsy

2017 ◽  
Author(s):  
ChaKaria Hunter ◽  
Marco Cesante ◽  
Sheng Xu ◽  
Bradford J. Wood ◽  
Reza Seifabadi
Keyword(s):  
Prostate Cancer ◽  
Tracking System ◽  
Transrectal Ultrasound ◽  
The United States ◽  
Needle Insertion ◽  
Patient Specific ◽  
3D Volume ◽  
The Cost ◽  
Tracking Devices ◽  
Electromagnetic Tracking System

Prostate cancer is the most common male cancer in the United States with an estimated 181,000 new cases and 26,000 deaths in 2016 [1]. Transrectal ultrasound (TRUS) guided biopsy is the gold standard for definitive diagnosis in which the imaging and needle insertion are both done transrectally. Since ultrasound guidance results in insufficient sensitivity of prostate cancer diagnosis (40–60%), fusion of preoperative MRI with real-time US has been proposed to increase the sensitivity (∼ 90%). Transperineal biopsies have recently gained attention using a brachytherapy grid to biopsy through the perineum rather than the rectum, practically eliminating the possibility of infection. To enable MR-US fusion, electromagnetic tracking system is commonly used to make a 3D volume out of a stack of 2D US images acquired during an initial sweep of prostate. The EM tracking however is somewhat undesirable as it adds to the cost of the procedure and is prone to inaccuracies. Therefore, in this study, we propose a method that eliminates the need for such external tracking devices and inserts the needle transperineally thus reducing infection risks. Also, the procedure is more comfortable to the patient since the TRUS probe is eliminated. A patient specific grid template is designed based on the MR image of the patient.

scholarly journals Design and Implementation of a Pathology-Specific Handoff Tool for Residents

2019 ◽  
Vol 6 ◽  
pp. 237428951983918
Author(s):  
Thomas S. Rogers ◽  
Rebecca Wilcox ◽  
Sarah K. Harm
Keyword(s):  
Training Program ◽  
Residency Training ◽  
Residency Program ◽  
Residency Training Program ◽  
Patient Specific ◽  
Patient Handoff ◽  
Residency Programs ◽  
Design And Implementation ◽  
Laboratory Operation ◽  
Attending Physicians

Miscommunication is a source of clinical errors. Tools to decrease the risk of miscommunication (ie, patient handoff tools) are routinely used in clinical specialties that see patients but not routinely used in pathology residency programs. Our primary goal was to develop a structured handoff tool for pathology residents useful for both patient-specific communication and information about general laboratory operation with a secondary goal to increase resident confidence in on-call situations. The CATCH tool was developed and implemented in a pathology residency program with a pre- and postimplementation survey given to residents. The structured handoff tool for pathology residents provided consistent and timely communication between residents and attending physicians. Resident confidence with pathology on-call issues was more likely related to progression through the residency training program rather than implementation of a structured handoff tool.

scholarly journals Design and implementation of a cognitive engine functional architecture

2012 ◽  
Vol 57 (28-29) ◽  
pp. 3698-3704 ◽  
Author(s):  
Xu Dong ◽  
Ying Li ◽  
ShengQun Wei
Keyword(s):  
Functional Architecture ◽  
Cognitive Engine ◽  
Design And Implementation
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