scholarly journals An Ultrasound-Guided Organ Biopsy Simulation with 6DOF Haptic Feedback

Author(s):  
Dong Ni ◽  
Wing-Yin Chan ◽  
Jing Qin ◽  
Yingge Qu ◽  
Yim-Pan Chui ◽  
...  
Author(s):  
Si Yen Ng ◽  
Chi-Lun Lin

Abstract Ultrasound-guided central venous cannulation (CVC) has become standard to care. Ultrasound imaging allows the CVC procedure to be completed much safer than a standard blind landmark approach. To enhance medical personnel’s skill in performing challenging ultrasound-guided CVC, an adult size CVC phantom that simulated the human head to the chest, with a detachable CVC operational part, was proposed in this study to provide medical personnel with realistic needle insertion haptic feedback and ultrasound imaging. The detachable CVC operational part could be customized to simulate different patient conditions, such as adult patient (with normal standard size of vascular), the elderly (with collapsed vascular), children (with smaller diameter of vascular), vascular fibrosis patient (with hardening of vascular) and obese patient (with thick fat tissue). In the current stage of prototype development, a CVC operational part with simulated blood vessels and clavicle embedded inside the fat- and muscle-mimicking tissue was produced. Both the fat- and muscle-mimicking tissue pose mechanical and acoustic properties similar to real tissues. The target vein for CVC procedure could be recognized from the ultrasound imaging of the CVC operational part.


2020 ◽  
Author(s):  
Si Yen Ng ◽  
Yao-Lung Kuo ◽  
Chi-Lun Lin

Abstract Background: We developed an inexpensive and easy-to-fabricate gelatin-based breast biopsy training phantom and evaluated its effectiveness in improving the biopsy skill level and confidence level of residents.Methods: Six residents were requested to evaluate the effectiveness of the double-layered breast phantom, which contained a malignant tumor, two benign tumors, and a cyst. The Young’s modulus and acoustic properties of the gelatin tissue phantom and simulated tumors were investigated.Results: The result showed that 83% (n=5) of the participants agreed that the ultrasound image quality produced by the breast phantom was excellent or good. However, only 17% (n=1) of the participants claimed that there was room of improvement for the haptic feedback they received during the placement of core needle into the breast phantom. The mean pre-instructional score was 17% (SD 33%) for all participants. The mean post-instructional score was 83% (SD 33%), giving an overall improvement of 1.32/2 mean scores. The mean needle biopsy skill and confidence levels of the participants substantially increased through simulation training on our breast phantom.Conclusions: The proposed breast phantom can be easily fabricated by a resident for breast biopsy training. Simulation training using our breast phantom can improve a resident's confidence when performing challenging ultrasound-guided breast biopsy. According to the participants’ feedback, our breast phantom is sufficiently realistic in terms of ultrasound imaging and haptic feedback during needle insertion; thus, the training outcome can be linked to the performance of residents when they perform a live biopsy.


2001 ◽  
Vol 120 (5) ◽  
pp. A475-A475
Author(s):  
M SAILER ◽  
D BUSSEN ◽  
M KRAEMER ◽  
M FEIN ◽  
S FREYS ◽  
...  

2019 ◽  
Vol 25 ◽  
pp. 306
Author(s):  
Tien-Hao Lee ◽  
Russell Gibson ◽  
Judith Giunta
Keyword(s):  

VASA ◽  
2004 ◽  
Vol 33 (2) ◽  
pp. 78-81 ◽  
Author(s):  
Thalhammer ◽  
Aschwanden ◽  
Jeanneret ◽  
Labs ◽  
Jäger

Background: Haemostatic puncture closure devices for rapid and effective hemostasis after arterial catheterisation are a comfortable alternative to manual compression. Implanting a collagen plug against the vessel wall may become responsible for other kind of vascular injuries i.e. thrombotic or stenotic lesions and peripheral embolisation. The aim of this paper is to report our clinically relevant vascular complications after Angio-Seal® and to discuss the results in the light of the current literature. Patients and methods: We report the symptomatic vascular complications in 17 of 7376 patients undergoing diagnostic or therapeutic catheterisation between May 2000 and March 2003 at the University Hospital Basel. Results: Most patients presented with ischaemic symptoms, arterial stenoses or occlusions and thrombotic lesions (n = 14), whereas pseudoaneurysms were extremely rare (n = 3). Most patients with ischaemic lesions underwent vascular surgery and all patients with a pseudoaneurysm were successfully treated by ultrasound-guided compression. Conclusions: Severe vascular complications after Angio-Seal® are rare, consistent with the current literature. There may be a shift from pseudoaneurysms to ischaemic lesions.


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