Skip to main content
Top
Published in: Critical Care 1/2016

Open Access 01-12-2015 | Review

A guide to human in vivo microcirculatory flow image analysis

Authors: Michael J. Massey, Nathan I. Shapiro

Published in: Critical Care | Issue 1/2016

Login to get access

Abstract

Various noninvasive microscopic camera technologies have been used to visualize the sublingual microcirculation in patients. We describe a comprehensive approach to bedside in vivo sublingual microcirculation video image capture and analysis techniques in the human clinical setting. We present a user perspective and guide suitable for clinical researchers and developers interested in the capture and analysis of sublingual microcirculatory flow videos. We review basic differences in the cameras, optics, light sources, operation, and digital image capture. We describe common techniques for image acquisition and discuss aspects of video data management, including data transfer, metadata, and database design and utilization to facilitate the image analysis pipeline. We outline image analysis techniques and reporting including video preprocessing and image quality evaluation. Finally, we propose a framework for future directions in the field of microcirculatory flow videomicroscopy acquisition and analysis. Although automated scoring systems have not been sufficiently robust for widespread clinical or research use to date, we discuss promising innovations that are driving new development.
Appendix
Available only for authorised users
Literature
1.
go back to reference Groner W, Winkelman JW, Harris AG, Ince C, Bouma GJ, Messmer K, et al. Orthogonal polarization spectral imaging: a new method for study of the microcirculation. Nat Med. 1999;5:1209–12.CrossRefPubMed Groner W, Winkelman JW, Harris AG, Ince C, Bouma GJ, Messmer K, et al. Orthogonal polarization spectral imaging: a new method for study of the microcirculation. Nat Med. 1999;5:1209–12.CrossRefPubMed
2.
go back to reference Arnold RC, Parrillo JE, Phillip Dellinger R, Chansky ME, Shapiro NI, Lundy DJ, et al. Point-of-care assessment of microvascular blood flow in critically ill patients. Intensive Care Med. 2009;35:1761–6.CrossRefPubMed Arnold RC, Parrillo JE, Phillip Dellinger R, Chansky ME, Shapiro NI, Lundy DJ, et al. Point-of-care assessment of microvascular blood flow in critically ill patients. Intensive Care Med. 2009;35:1761–6.CrossRefPubMed
3.
go back to reference Bezemer R, Bartels SA, Bakker J, Ince C. Clinical review: Clinical imaging of the sublingual microcirculation in the critically ill—where do we stand. Crit Care. 2012;16:224–33.PubMedCentralCrossRefPubMed Bezemer R, Bartels SA, Bakker J, Ince C. Clinical review: Clinical imaging of the sublingual microcirculation in the critically ill—where do we stand. Crit Care. 2012;16:224–33.PubMedCentralCrossRefPubMed
4.
go back to reference Bezemer R, Dobbe JG, Bartels SA, Boerma EC, Elbers PW, Heger M, et al. Rapid automatic assessment of microvascular density in sidestream dark field images. Med Biol Eng Comput. 2011;49:1269–78.PubMedCentralCrossRefPubMed Bezemer R, Dobbe JG, Bartels SA, Boerma EC, Elbers PW, Heger M, et al. Rapid automatic assessment of microvascular density in sidestream dark field images. Med Biol Eng Comput. 2011;49:1269–78.PubMedCentralCrossRefPubMed
5.
go back to reference Boerma EC, Mathura KR, van der Voort PH, Spronk PE, Ince C. Quantifying bedside-derived imaging of microcirculatory abnormalities in septic patients: a prospective validation study. Crit Care. 2005;9:R601–6.PubMedCentralCrossRefPubMed Boerma EC, Mathura KR, van der Voort PH, Spronk PE, Ince C. Quantifying bedside-derived imaging of microcirculatory abnormalities in septic patients: a prospective validation study. Crit Care. 2005;9:R601–6.PubMedCentralCrossRefPubMed
6.
go back to reference Bracht H, Krejci V, Hiltebrand L, Brandt S, Sigurdsson G, Ali SZ, et al. Orthogonal polarization spectroscopy to detect mesenteric hypoperfusion. Intensive Care Med. 2008;34:1883–90.CrossRefPubMed Bracht H, Krejci V, Hiltebrand L, Brandt S, Sigurdsson G, Ali SZ, et al. Orthogonal polarization spectroscopy to detect mesenteric hypoperfusion. Intensive Care Med. 2008;34:1883–90.CrossRefPubMed
7.
go back to reference De Backer D, Hollenberg S, Boerma C, Goedhart P, Buchele G, Ospina-Tascon G, et al. How to evaluate the microcirculation: report of a round table conference. Crit Care. 2007;11:R101.PubMedCentralCrossRefPubMed De Backer D, Hollenberg S, Boerma C, Goedhart P, Buchele G, Ospina-Tascon G, et al. How to evaluate the microcirculation: report of a round table conference. Crit Care. 2007;11:R101.PubMedCentralCrossRefPubMed
8.
go back to reference De Backer D, Ospina-Tascon G, Salgado D, Favory R, Creteur J, Vincent JL. Monitoring the microcirculation in the critically ill patient: current methods and future approaches. Intensive Care Med. 2010;36:1813–25.CrossRefPubMed De Backer D, Ospina-Tascon G, Salgado D, Favory R, Creteur J, Vincent JL. Monitoring the microcirculation in the critically ill patient: current methods and future approaches. Intensive Care Med. 2010;36:1813–25.CrossRefPubMed
9.
go back to reference De Backer D, Verdant C, Chierego M, Koch M, Gullo A, Vincent JL. Effects of drotrecogin alfa activated on microcirculatory alterations in patients with severe sepsis. Crit Care Med. 2006;34:1918–24.CrossRefPubMed De Backer D, Verdant C, Chierego M, Koch M, Gullo A, Vincent JL. Effects of drotrecogin alfa activated on microcirculatory alterations in patients with severe sepsis. Crit Care Med. 2006;34:1918–24.CrossRefPubMed
10.
go back to reference den Uil CA, Caliskan K, Lagrand WK, van der Ent M, Jewbali LS, van Kuijk JP, et al. Dose-dependent benefit of nitroglycerin on microcirculation of patients with severe heart failure. Intensive Care Med. 2009;35:1893–9.CrossRef den Uil CA, Caliskan K, Lagrand WK, van der Ent M, Jewbali LS, van Kuijk JP, et al. Dose-dependent benefit of nitroglycerin on microcirculation of patients with severe heart failure. Intensive Care Med. 2009;35:1893–9.CrossRef
11.
go back to reference den Uil CA, Lagrand WK, Spronk PE, van der Ent M, Jewbali LS, Brugts JJ, et al. Low-dose nitroglycerin improves microcirculation in hospitalized patients with acute heart failure. Eur J Heart Fail. 2009;11:386–90.CrossRef den Uil CA, Lagrand WK, Spronk PE, van der Ent M, Jewbali LS, Brugts JJ, et al. Low-dose nitroglycerin improves microcirculation in hospitalized patients with acute heart failure. Eur J Heart Fail. 2009;11:386–90.CrossRef
12.
go back to reference Dobbe JG, Streekstra GJ, Atasever B, van Zijderveld R, Ince C. Measurement of functional microcirculatory geometry and velocity distributions using automated image analysis. Med Biol Eng Comput. 2008;46:659–70.PubMedCentralCrossRefPubMed Dobbe JG, Streekstra GJ, Atasever B, van Zijderveld R, Ince C. Measurement of functional microcirculatory geometry and velocity distributions using automated image analysis. Med Biol Eng Comput. 2008;46:659–70.PubMedCentralCrossRefPubMed
13.
go back to reference Donati A, Damiani E, Domizi R, Romano R, Adrario E, Pelaia P, et al. Alteration of the sublingual microvascular glycocalyx in critically ill patients. Microvasc Res. 2013;90:86–9.CrossRefPubMed Donati A, Damiani E, Domizi R, Romano R, Adrario E, Pelaia P, et al. Alteration of the sublingual microvascular glycocalyx in critically ill patients. Microvasc Res. 2013;90:86–9.CrossRefPubMed
14.
go back to reference Donati A, Domizi R, Damiani E, Adrario E, Pelaia P, Ince C. From macrohemodynamic to the microcirculation. Crit Care Res Pract. 2013;2013:892710.PubMedCentralPubMed Donati A, Domizi R, Damiani E, Adrario E, Pelaia P, Ince C. From macrohemodynamic to the microcirculation. Crit Care Res Pract. 2013;2013:892710.PubMedCentralPubMed
15.
go back to reference Kanoore Edul VS, Enrico C, Laviolle B, Vazquez AR, Ince C, Dubin A. Quantitative assessment of the microcirculation in healthy volunteers and in patients with septic shock. Crit Care Med. 2012;40:1443–8.CrossRef Kanoore Edul VS, Enrico C, Laviolle B, Vazquez AR, Ince C, Dubin A. Quantitative assessment of the microcirculation in healthy volunteers and in patients with septic shock. Crit Care Med. 2012;40:1443–8.CrossRef
16.
18.
go back to reference Eriksson S, Nilsson J, Sturesson C. Non-invasive imaging of microcirculation: a technology review. Med Devices (Auckl). 2014;7:445–52. Eriksson S, Nilsson J, Sturesson C. Non-invasive imaging of microcirculation: a technology review. Med Devices (Auckl). 2014;7:445–52.
21.
go back to reference Massey MJ, Larochelle E, Najarro G, Karmacharla A, Arnold R, Trzeciak S, et al. The microcirculation image quality score: development and preliminary evaluation of a proposed approach to grading quality of image acquisition for bedside videomicroscopy. J Crit Care. 2013;28:913–7.CrossRefPubMed Massey MJ, Larochelle E, Najarro G, Karmacharla A, Arnold R, Trzeciak S, et al. The microcirculation image quality score: development and preliminary evaluation of a proposed approach to grading quality of image acquisition for bedside videomicroscopy. J Crit Care. 2013;28:913–7.CrossRefPubMed
22.
go back to reference Milstein DMJ, Lindeboom JAH, Ince C. Sidestream dark-field imaging and image analysis of oral microcirculation under clinical conditions. Anaesth Pain Intensive Care Emerg. Proceedings of the 20th Postgraduate Course in Critical Care Medicine Trieste, Italy—November 18–21, 2005. 2006;Chapter 6:79–88. Milstein DMJ, Lindeboom JAH, Ince C. Sidestream dark-field imaging and image analysis of oral microcirculation under clinical conditions. Anaesth Pain Intensive Care Emerg. Proceedings of the 20th Postgraduate Course in Critical Care Medicine Trieste, Italy—November 18–21, 2005. 2006;Chapter 6:79–88.
23.
go back to reference Omar YG, Massey M, Andersen LW, Giberson TA, Berg K, Cocchi MN, et al. Sublingual microcirculation is impaired in post-cardiac arrest patients. Resuscitation. 2013;84:1717–22.CrossRefPubMed Omar YG, Massey M, Andersen LW, Giberson TA, Berg K, Cocchi MN, et al. Sublingual microcirculation is impaired in post-cardiac arrest patients. Resuscitation. 2013;84:1717–22.CrossRefPubMed
24.
go back to reference Robertson R, Lockhart E, Shapiro NI, Bankarenko N, McMahon T, Massey MJ, et al. Impact of transfusion of autologous 7 versus 42 day old AS-3 red blood cells on tissue oxygenation and the microcirculation in healthy volunteers. Transfusion. 2012;52:2459–64.CrossRef Robertson R, Lockhart E, Shapiro NI, Bankarenko N, McMahon T, Massey MJ, et al. Impact of transfusion of autologous 7 versus 42 day old AS-3 red blood cells on tissue oxygenation and the microcirculation in healthy volunteers. Transfusion. 2012;52:2459–64.CrossRef
25.
go back to reference Sakr Y, Chierego M, Piagnerelli M, Verdant C, Dubois MJ, Koch M, et al. Microvascular response to red blood cell transfusion in patients with severe sepsis. Crit Care Med. 2007;35:1639–44.CrossRefPubMed Sakr Y, Chierego M, Piagnerelli M, Verdant C, Dubois MJ, Koch M, et al. Microvascular response to red blood cell transfusion in patients with severe sepsis. Crit Care Med. 2007;35:1639–44.CrossRefPubMed
26.
go back to reference Sallisalmi M. Microcirculation and hemorheology in critically ill patients. PhD thesis, Dept. of Surgery Division of Anesthesia and Intensive Care Medicine. University of Helsinki, Helsinki, Finland. 2013. ISBN 978-952-10-8687-8 (PDF). Sallisalmi M. Microcirculation and hemorheology in critically ill patients. PhD thesis, Dept. of Surgery Division of Anesthesia and Intensive Care Medicine. University of Helsinki, Helsinki, Finland. 2013. ISBN 978-952-10-8687-8 (PDF).
27.
go back to reference Sallisalmi M, Oksala N, Pettila V, Tenhunen J. Evaluation of sublingual microcirculatory blood flow in the critically ill. Acta Anaesthesiol Scand. 2012;56:298–306.CrossRefPubMed Sallisalmi M, Oksala N, Pettila V, Tenhunen J. Evaluation of sublingual microcirculatory blood flow in the critically ill. Acta Anaesthesiol Scand. 2012;56:298–306.CrossRefPubMed
28.
go back to reference Sheikh MY, Javed U, Singh J, Choudhury J, Deen O, Dhah K, et al. Bedside sublingual video imaging of microcirculation in assessing bacterial infection in cirrhosis. Dig Dis Sci. 2009;54:2706–11.PubMedCentralCrossRefPubMed Sheikh MY, Javed U, Singh J, Choudhury J, Deen O, Dhah K, et al. Bedside sublingual video imaging of microcirculation in assessing bacterial infection in cirrhosis. Dig Dis Sci. 2009;54:2706–11.PubMedCentralCrossRefPubMed
29.
go back to reference Struijker-Boudier HA, Rosei AE, Bruneval P, Camici PG, Christ F, Henrion D, et al. Evaluation of the microcirculation in hypertension and cardiovascular disease. Eur Heart J. 2007;28:2834–40.CrossRefPubMed Struijker-Boudier HA, Rosei AE, Bruneval P, Camici PG, Christ F, Henrion D, et al. Evaluation of the microcirculation in hypertension and cardiovascular disease. Eur Heart J. 2007;28:2834–40.CrossRefPubMed
30.
go back to reference Taccone FS, Su F, Pierrakos C, He X, James S, Dewitte O, et al. Cerebral microcirculation is impaired during sepsis: an experimental study. Crit Care. 2010;14:R140.PubMedCentralCrossRefPubMed Taccone FS, Su F, Pierrakos C, He X, James S, Dewitte O, et al. Cerebral microcirculation is impaired during sepsis: an experimental study. Crit Care. 2010;14:R140.PubMedCentralCrossRefPubMed
31.
go back to reference Trzeciak S, Dellinger RP, Parrillo JE, Guglielmi M, Bajaj J, Abate NL, et al. Early microcirculatory perfusion derangements in patients with severe sepsis and septic shock: relationship to hemodynamics, oxygen transport, and survival. Ann Emerg Med. 2007;49:88–98. 98e1–2.CrossRefPubMed Trzeciak S, Dellinger RP, Parrillo JE, Guglielmi M, Bajaj J, Abate NL, et al. Early microcirculatory perfusion derangements in patients with severe sepsis and septic shock: relationship to hemodynamics, oxygen transport, and survival. Ann Emerg Med. 2007;49:88–98. 98e1–2.CrossRefPubMed
32.
go back to reference Trzeciak S, McCoy JV, Phillip Dellinger R, Arnold RC, Rizzuto M, Abate NL, et al. Early increases in microcirculatory perfusion during protocol-directed resuscitation are associated with reduced multi-organ failure at 24 h in patients with sepsis. Intensive Care Med. 2008;34:2210–7.PubMedCentralCrossRefPubMed Trzeciak S, McCoy JV, Phillip Dellinger R, Arnold RC, Rizzuto M, Abate NL, et al. Early increases in microcirculatory perfusion during protocol-directed resuscitation are associated with reduced multi-organ failure at 24 h in patients with sepsis. Intensive Care Med. 2008;34:2210–7.PubMedCentralCrossRefPubMed
33.
34.
go back to reference van Beers EJ, Goedhart PT, Unger M, Biemond BJ, Ince C. Normal sublingual microcirculation during painful crisis in sickle cell disease. Microvasc Res. 2008;76:57–60.CrossRefPubMed van Beers EJ, Goedhart PT, Unger M, Biemond BJ, Ince C. Normal sublingual microcirculation during painful crisis in sickle cell disease. Microvasc Res. 2008;76:57–60.CrossRefPubMed
35.
go back to reference van Elteren HA, Ince C, Tibboel D, Reiss IK, de Jonge RC. Cutaneous microcirculation in preterm neonates: comparison between sidestream dark field (SDF) and incident dark field (IDF) imaging. J Clin Monit Comput. 2015;29:543–8.PubMedCentralCrossRefPubMed van Elteren HA, Ince C, Tibboel D, Reiss IK, de Jonge RC. Cutaneous microcirculation in preterm neonates: comparison between sidestream dark field (SDF) and incident dark field (IDF) imaging. J Clin Monit Comput. 2015;29:543–8.PubMedCentralCrossRefPubMed
36.
go back to reference Verdant CL, De Backer D, Bruhn A, Clausi CM, Su F, Wang Z, et al. Evaluation of sublingual and gut mucosal microcirculation in sepsis: a quantitative analysis. Crit Care Med. 2009;37:2875–81.CrossRefPubMed Verdant CL, De Backer D, Bruhn A, Clausi CM, Su F, Wang Z, et al. Evaluation of sublingual and gut mucosal microcirculation in sepsis: a quantitative analysis. Crit Care Med. 2009;37:2875–81.CrossRefPubMed
38.
go back to reference Vellinga NA, Boerma EC, Koopmans M, Donati A, Dubin A, Shapiro NI, et al. International study on microcirculatory shock occurrence in acutely ill patients. Crit Care Med. 2015;43:48–56.CrossRefPubMed Vellinga NA, Boerma EC, Koopmans M, Donati A, Dubin A, Shapiro NI, et al. International study on microcirculatory shock occurrence in acutely ill patients. Crit Care Med. 2015;43:48–56.CrossRefPubMed
39.
go back to reference Dababneh L, Cikach F, Alkukhun L, Dweik RA, Tonelli AR. Sublingual microcirculation in pulmonary arterial hypertension. Ann Am Thorac Soc. 2014;11:504–12.PubMedCentralCrossRefPubMed Dababneh L, Cikach F, Alkukhun L, Dweik RA, Tonelli AR. Sublingual microcirculation in pulmonary arterial hypertension. Ann Am Thorac Soc. 2014;11:504–12.PubMedCentralCrossRefPubMed
40.
go back to reference Aykut G, Veenstra G, Scorcella C, Ince C, Boerma C. Cytocam-IDF (incident dark field illumination) imaging for bedside monitoring of the microcirculation. Intensive Care Med Exp. 2015;3:40.CrossRefPubMed Aykut G, Veenstra G, Scorcella C, Ince C, Boerma C. Cytocam-IDF (incident dark field illumination) imaging for bedside monitoring of the microcirculation. Intensive Care Med Exp. 2015;3:40.CrossRefPubMed
41.
go back to reference Bezemer R, Khalilzada M, Ince C. Recent advancements in microcirculatory image acquisition and analysis. In: Yearbook of intensive care and emergency medicine. Berlin: Springer; 2008. p. 677–90.CrossRef Bezemer R, Khalilzada M, Ince C. Recent advancements in microcirculatory image acquisition and analysis. In: Yearbook of intensive care and emergency medicine. Berlin: Springer; 2008. p. 677–90.CrossRef
42.
go back to reference De Backer D, Creteur J, Preiser JC, Dubois MJ, Vincent JL. Microvascular blood flow is altered in patients with sepsis. Am J Respir Crit Care Med. 2002;166:98–104.CrossRefPubMed De Backer D, Creteur J, Preiser JC, Dubois MJ, Vincent JL. Microvascular blood flow is altered in patients with sepsis. Am J Respir Crit Care Med. 2002;166:98–104.CrossRefPubMed
43.
go back to reference Sakr Y, Dubois MJ, De Backer D, Creteur J, Vincent JL. Persistent microcirculatory alterations are associated with organ failure and death in patients with septic shock. Crit Care Med. 2004;32:1825–31.CrossRefPubMed Sakr Y, Dubois MJ, De Backer D, Creteur J, Vincent JL. Persistent microcirculatory alterations are associated with organ failure and death in patients with septic shock. Crit Care Med. 2004;32:1825–31.CrossRefPubMed
44.
go back to reference Spronk PE, Ince C, Gardien MJ, Mathura KR, Oudemans-van Straaten HM, Zandstra DF. Nitroglycerin in septic shock after intravascular volume resuscitation. Lancet. 2002;360:1395–6.CrossRefPubMed Spronk PE, Ince C, Gardien MJ, Mathura KR, Oudemans-van Straaten HM, Zandstra DF. Nitroglycerin in septic shock after intravascular volume resuscitation. Lancet. 2002;360:1395–6.CrossRefPubMed
45.
go back to reference Sherman H, Klausner S, Cook WA. Incident dark-field illumination a new method for microcirculation study. Angiology. 1971;22:295–303.CrossRefPubMed Sherman H, Klausner S, Cook WA. Incident dark-field illumination a new method for microcirculation study. Angiology. 1971;22:295–303.CrossRefPubMed
46.
go back to reference Goedhart PT, Khalilzada M, Bezemer R, Merza J, Ince C. Sidestream dark field (SDF) imaging: a novel stroboscopic LED ring-based imaging modality for clinical assessment of the microcirculation. Opt Express. 2007;15:15101–14.CrossRefPubMed Goedhart PT, Khalilzada M, Bezemer R, Merza J, Ince C. Sidestream dark field (SDF) imaging: a novel stroboscopic LED ring-based imaging modality for clinical assessment of the microcirculation. Opt Express. 2007;15:15101–14.CrossRefPubMed
47.
go back to reference Balestra GM, Bezemer R, Boerma EC, Yong ZY, Sjauw KD, Engstrom AE, et al. Improvement of sidestream dark field imaging with an image acquisition stabilizer. BMC Med Imaging. 2010;10:15.PubMedCentralCrossRefPubMed Balestra GM, Bezemer R, Boerma EC, Yong ZY, Sjauw KD, Engstrom AE, et al. Improvement of sidestream dark field imaging with an image acquisition stabilizer. BMC Med Imaging. 2010;10:15.PubMedCentralCrossRefPubMed
48.
go back to reference Lindert J, Werner J, Redlin M, Kuppe H, Habazettl H, Pries AR. OPS imaging of human microcirculation. A short technical report. J Vasc Res. 2002;39:368–72.CrossRefPubMed Lindert J, Werner J, Redlin M, Kuppe H, Habazettl H, Pries AR. OPS imaging of human microcirculation. A short technical report. J Vasc Res. 2002;39:368–72.CrossRefPubMed
50.
go back to reference Demir SU, Hakimzadeh R, Hargraves RH, Ward KR, Myer EV, Najarian K. An automated method for analysis of microcirculation videos for accurate assessment of tissue perfusion. BMC Med Imaging. 2012;12:37–50.PubMedCentralCrossRefPubMed Demir SU, Hakimzadeh R, Hargraves RH, Ward KR, Myer EV, Najarian K. An automated method for analysis of microcirculation videos for accurate assessment of tissue perfusion. BMC Med Imaging. 2012;12:37–50.PubMedCentralCrossRefPubMed
51.
go back to reference Demir SU, Mirshahi N. Ward K, Hakimzadeh R. Hobson R, Najarian K. Vessel extraction of microcirculatory video recordings using multi-thresholding based verification algorithm. 2010 International Conference on Biosciences (BIOSCIENCESWORLD); 7–13 March 2010:11–15. doi:10.1109/BioSciencesWorld.2010.9 Demir SU, Mirshahi N. Ward K, Hakimzadeh R. Hobson R, Najarian K. Vessel extraction of microcirculatory video recordings using multi-thresholding based verification algorithm. 2010 International Conference on Biosciences (BIOSCIENCESWORLD); 7–13 March 2010:11–15. doi:10.​1109/​BioSciencesWorld​.​2010.​9
52.
go back to reference You S, Ataer-Cansizoglu E, Erdogmus D, Massey M, Shapiro N. Microvascular blood flow estimation in sublingual microcirculation videos based on a principal curve tracing algorithm. 2012 IEEE Int Workshop Machine Learning for Signal Proc (MLSP); 23–26 Sept. 2012:1–6. doi:10.1109/MLSP.2012.6349763 You S, Ataer-Cansizoglu E, Erdogmus D, Massey M, Shapiro N. Microvascular blood flow estimation in sublingual microcirculation videos based on a principal curve tracing algorithm. 2012 IEEE Int Workshop Machine Learning for Signal Proc (MLSP); 23–26 Sept. 2012:1–6. doi:10.​1109/​MLSP.​2012.​6349763
53.
go back to reference You S, Massey M, Shapiro N, Erdogmus D. A novel line detection method in space-time images for microvascular blood flow analysis in sublingual microcirculatory videos. 2013 IEEE 10th Int Symposium on Biomed Imaging; 7–11 April 2013:828–31. doi:10.1109/ISBI.2013.6556603. You S, Massey M, Shapiro N, Erdogmus D. A novel line detection method in space-time images for microvascular blood flow analysis in sublingual microcirculatory videos. 2013 IEEE 10th Int Symposium on Biomed Imaging; 7–11 April 2013:828–31. doi:10.​1109/​ISBI.​2013.​6556603.
54.
go back to reference Pozo MO, Kanoore Edul VS, Ince C, Dubin A. Comparison of different methods for the calculation of the microvascular flow index. Crit Care Res Pract. 2012;2012:102483.PubMedCentralPubMed Pozo MO, Kanoore Edul VS, Ince C, Dubin A. Comparison of different methods for the calculation of the microvascular flow index. Crit Care Res Pract. 2012;2012:102483.PubMedCentralPubMed
Metadata
Title
A guide to human in vivo microcirculatory flow image analysis
Authors
Michael J. Massey
Nathan I. Shapiro
Publication date
01-12-2015
Publisher
BioMed Central
Published in
Critical Care / Issue 1/2016
Electronic ISSN: 1364-8535
DOI
https://doi.org/10.1186/s13054-016-1213-9

Other articles of this Issue 1/2016

Critical Care 1/2016 Go to the issue