Assessment of the applicability of analytical models for blood flow prediction in reconstructive surgery

D. Drikakis, C. Milionis, S.K. Pal, S. Patel, E. Shapiro

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Arterial flow in the context of plastic or reconstructive surgery is of primary importance to the successful outcome of the procedure. Analytic formulae, which are frequently used for the estimates of flow rates in these applications, introduce a number of assumptions about the geometry of the artery, the character of the flow and media properties of blood. This paper presents a computational fluid dynamics (CFD) study of a ligated artery using real geometry taken from ex vivo intraoperative angiography of an axial flap. An analytical model is derived for this case under assumptions typically made in the literature and comparisons between the CFD study and the analytical model are presented. A systematic study to evaluate the effects of the assumptions made in constructing analytical models has been conducted, showing that the most limiting assumption is that of the simplified geometry that can lead to the pressure drop being under-predicted by up to 2.65 times
Original languageEnglish
Pages (from-to)993-999
Number of pages7
JournalInternational Journal for Numerical Methods in Biomedical Engineering
Volume27
Issue number7
DOIs
Publication statusPublished - 31 Jul 2011

Fingerprint

Reconstructive Surgical Procedures
Hydrodynamics
Blood Flow
Analytical Model
Surgery
Analytical models
Blood
Arteries
Geometry
Prediction
Computational fluid dynamics
Plastic Surgery
Computational Fluid Dynamics
Angiography
Pressure
Pressure drop
Pressure Drop
Flow rate
Flow Rate
Plastics

Keywords

  • analytical models
  • blood flow
  • reconstructive surgery
  • CFD

Cite this

@article{fe160064e30e4f4ab99476a35ddea091,
title = "Assessment of the applicability of analytical models for blood flow prediction in reconstructive surgery",
abstract = "Arterial flow in the context of plastic or reconstructive surgery is of primary importance to the successful outcome of the procedure. Analytic formulae, which are frequently used for the estimates of flow rates in these applications, introduce a number of assumptions about the geometry of the artery, the character of the flow and media properties of blood. This paper presents a computational fluid dynamics (CFD) study of a ligated artery using real geometry taken from ex vivo intraoperative angiography of an axial flap. An analytical model is derived for this case under assumptions typically made in the literature and comparisons between the CFD study and the analytical model are presented. A systematic study to evaluate the effects of the assumptions made in constructing analytical models has been conducted, showing that the most limiting assumption is that of the simplified geometry that can lead to the pressure drop being under-predicted by up to 2.65 times",
keywords = "analytical models, blood flow, reconstructive surgery, CFD",
author = "D. Drikakis and C. Milionis and S.K. Pal and S. Patel and E. Shapiro",
year = "2011",
month = "7",
day = "31",
doi = "10.1002/cnm.1401",
language = "English",
volume = "27",
pages = "993--999",
journal = "International Journal for Numerical Methods in Biomedical Engineering",
issn = "2040-7939",
number = "7",

}

Assessment of the applicability of analytical models for blood flow prediction in reconstructive surgery. / Drikakis, D.; Milionis, C.; Pal, S.K.; Patel, S.; Shapiro, E.

In: International Journal for Numerical Methods in Biomedical Engineering , Vol. 27, No. 7, 31.07.2011, p. 993-999.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Assessment of the applicability of analytical models for blood flow prediction in reconstructive surgery

AU - Drikakis, D.

AU - Milionis, C.

AU - Pal, S.K.

AU - Patel, S.

AU - Shapiro, E.

PY - 2011/7/31

Y1 - 2011/7/31

N2 - Arterial flow in the context of plastic or reconstructive surgery is of primary importance to the successful outcome of the procedure. Analytic formulae, which are frequently used for the estimates of flow rates in these applications, introduce a number of assumptions about the geometry of the artery, the character of the flow and media properties of blood. This paper presents a computational fluid dynamics (CFD) study of a ligated artery using real geometry taken from ex vivo intraoperative angiography of an axial flap. An analytical model is derived for this case under assumptions typically made in the literature and comparisons between the CFD study and the analytical model are presented. A systematic study to evaluate the effects of the assumptions made in constructing analytical models has been conducted, showing that the most limiting assumption is that of the simplified geometry that can lead to the pressure drop being under-predicted by up to 2.65 times

AB - Arterial flow in the context of plastic or reconstructive surgery is of primary importance to the successful outcome of the procedure. Analytic formulae, which are frequently used for the estimates of flow rates in these applications, introduce a number of assumptions about the geometry of the artery, the character of the flow and media properties of blood. This paper presents a computational fluid dynamics (CFD) study of a ligated artery using real geometry taken from ex vivo intraoperative angiography of an axial flap. An analytical model is derived for this case under assumptions typically made in the literature and comparisons between the CFD study and the analytical model are presented. A systematic study to evaluate the effects of the assumptions made in constructing analytical models has been conducted, showing that the most limiting assumption is that of the simplified geometry that can lead to the pressure drop being under-predicted by up to 2.65 times

KW - analytical models

KW - blood flow

KW - reconstructive surgery

KW - CFD

UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-79959769876&partnerID=40&md5=de1172bb659e857c5d0adf8b2f204728

U2 - 10.1002/cnm.1401

DO - 10.1002/cnm.1401

M3 - Article

VL - 27

SP - 993

EP - 999

JO - International Journal for Numerical Methods in Biomedical Engineering

JF - International Journal for Numerical Methods in Biomedical Engineering

SN - 2040-7939

IS - 7

ER -