Effect of a notch at the distal end of a microcatheter on vein deformation in segmental adrenal venous sampling: a preliminary study using computational fluid dynamics.
This study aimed to evaluate the effect of a notch at the distal end of a microcatheter on vein deformation in segmental adrenal venous sampling. A three-dimensional fluid-structure interaction simulation was performed using commercial finite element software. A computational model of a vein with a...
| Publicado en: | Medical & Biological Engineering & Computing Vol. 57; no. 7; pp. 1425 - 1437 |
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| Autores principales: | , , , , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Springer Nature
Jul2019
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=137162492&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 137162492 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01400118 PO0 jtl: Medical & Biological Engineering & Computing issn: 01400118 maglogo: N pubinfo: dt: Jul2019 vid: 57 iid: 7 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 137162492 137162492 NLM30887302 137162492 10.1007/s11517-019-01968-1 NLM30887302 137162492 ppf: 1425 ppct: 12 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Effect of a notch at the distal end of a microcatheter on vein deformation in segmental adrenal venous sampling: a preliminary study using computational fluid dynamics. aug: au: Kinoshita, Tomo Seiji, Kazumasa Putra, Narendra Kurnia Watanabe, Tomohito Matsumoto, Sho Ohta, Makoto Takase, Kei affil: Department of Diagnostic Radiology, Tohoku University Graduate school of Medicine, 1-1 Seiryo-machi, Aoba-ku, 9800811, Sendai-shi, Miyagi-ken, Japan sug: subj: Phlebotomy Equipment and Supplies Models, Biological Veins Injuries Central Venous Catheters Equipment Design Physiochemical Phenomena Blood Flow Velocity Funding Source Human ab: This study aimed to evaluate the effect of a notch at the distal end of a microcatheter on vein deformation in segmental adrenal venous sampling. A three-dimensional fluid-structure interaction simulation was performed using commercial finite element software. A computational model of a vein with a catheter inserted into it was constructed. The outer and inner diameters of the vein were 0.9 mm and 0.6 mm, respectively, whereas those of the catheter were 0.6 mm and 0.5 mm, respectively. The velocity of the blood flow at the outlet was 85 mm/s. The pressure at the inlet was 0 Pa. The mesh consisted of approximately 660,000 elements. The effect of the number (0-4) and shape (no notch, 1/4 circular, 1/3 circular, semicircular, 2/3 circlecircular, and 3/4 circular) of the notches at the distal end of the microcatheter on the vein deformation when a suction pressure was applied was evaluated. The venous wall displacement was the smallest with the one-notch catheter, followed by the four-notch catheter, and was the smallest with the catheter having 1/4-circular notches, followed by the one with 1/3-circular notches. In conclusion, microcatheters having one notch and 1/4-circular notches reduce vein deformation and lead to successful segmental adrenal venous sampling. Graphical abstract Comparing catheters having different notch shapes. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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