Guiding Sheath
Guiding Sheath - Related Videos
05:51
Computed Tomography (CT) Guided Implantation of a Totally Implantable Venous Access Port (TIVAP) through Subclavian Vein
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2026
Implantation of a totally implantable venous access port (TIVAP) through the subclavian vein under CT guidance is a highly safe and precise method that can effectively reduce the incidence of complications and facilitate early detection of potential complications.
06:09
Optic Nerve Sheath Point of Care Ultrasound: Image Acquisition
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Cited by 1 •
2023
Point-of-care ultrasound (POCUS) of the optic nerve sheath diameter (ONSD) has been shown to be useful in identifying patients with increased intracranial pressure (ICP). However, the non-standardized technique for this POCUS has hampered its use. We present a standardized image acquisition protocol for use in the acute care setting.
05:16
An Ultrasound-Guided Vascular Access Procedure in an Anesthetized Pig
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2026
Source:Rui Cerqueira1,2, Liliana Costa1, André Leite-Moreira1, Adelino Leite-Moreira1,2, André Lourenço1, Pedro Mendes-Ferreira11Department of Surgery and Physiology, Faculty of Medicine of the University of Porto.2Department of Cardiothoracic Surgery, Hospital Universitário de São João.The video demonstrates a procedure for obtaining vascular access in an anesthetized pig using ultrasound guidance. After disinfecting the site and administering local anesthesia, an ultrasound probe is used to...
03:39
Colonoscopic Guided Pinch Biopsy in a Mouse Model: A Technique to Visualize and Extract Tissue Samples from Mouse Colon
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2025
This video demonstrates the protocol for performing colonoscope-guided pinch biopsy in the mouse. This technique helps visually analyze the colon lumen and collect tissue samples for detailed studies.
08:22
Ultrasound-guided Transthoracic Intramyocardial Injection in Mice
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Cited by 16 •
2014
Echocardiography-guided percutaneous intramyocardial injection represents an efficient, reliable, and targetable modality for the delivery of gene transfer agents or cells into the murine heart. Following the steps outlined in this protocol, the operator can quickly become competent in this versatile, minimally invasive technique.
FAQs
The lumen creates an internal route for catheters, guidewires, and other instruments, while the surrounding sheath helps maintain the access path within the vessel. Working together, these features allow devices to be directed toward the cerebral circulation without requiring a new vessel entry for every instrument exchange, supporting steadier procedural control.
Design and placement determine how reliably the access pathway is maintained as instruments move through the vasculature. A properly positioned sheath supports device passage toward the cerebral circulation and helps preserve the route during the procedure. These factors therefore influence navigation, control, and the safe access needed for neurointerventional work.
Maintaining access through the sheath reduces the need for repeated entry into the vessel during a procedure. Its stable pathway can support the passage of multiple catheters, guidewires, or other instruments as the intervention progresses. This continuity is especially relevant when cerebral navigation requires repeated device delivery through the same vascular route.
Use begins with insertion into a blood vessel, followed by advancement toward the cerebral circulation. Once positioned, the sheath provides the route through which a catheter, guidewire, or other instrument can be introduced and directed. The procedure then uses that maintained pathway for angiography, treatment, or delivery of a selected device.
A Guiding Sheath is relevant when a procedure requires endovascular access to the cerebral circulation. Supported uses include cerebral angiography, endovascular treatment, and delivery of devices for managing vascular disorders. In neuroscience, the sheath connects vascular access with procedures that require controlled instrument navigation inside vessels supplying or involving the brain.
Its use can influence the stability of vascular access, the ease of directing instruments, and the level of procedural control. Because the sheath supports a maintained route toward the cerebral circulation, its placement and design may affect how efficiently devices are advanced and how safely minimally invasive vascular procedures are conducted.