The microcirculation image quality score: Development and preliminary evaluation of a proposed approach to grading quality of image acquisition for bedside videomicroscopy

Massey, M.J.; LaRochelle, Ethan; Najarro, Gabriel; Karmacharla, Adarsh; Arnold, Ryan; Trzeciak, Stephen; Angus, Derek C.; Shapiro, Nathan I.

doi:10.1016/j.jcrc.2013.06.015

Cited by 164 publications

(169 citation statements)

References 13 publications

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“…In the future, variations in RRS measurements in both these populations should be investigated in the context of cardiac hemodynamics specifically with relation to a patent ductus arteriosus, which may explain day-to-day changes seen in the RRS measurements. It is also unclear whether the buccal mucosa is an appropriate monitoring site, as it required the investigator to manually maintain the probe in place for all measurements, and differences in buccal vascular orientation exist compared to limb circulation [11,25]. We also did not investigate the effect of heating the plantar surface of premature neonates on RRS measurements.…”

Section: Discussionmentioning

confidence: 99%

Direct Measurement of Tissue Oxygenation in Neonates via Resonance Raman Spectroscopy: A Pilot Study

Iyengar

Gaillardetz²,

Tighiouart³

et al. 2017

Neonatology

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Background: The ability to monitor tissue oxygenation in neonates remains a challenge due to limited blood supply and the reliance on invasive procedures. Resonance Raman spectroscopy noninvasively measures tissue oxygenation (RRS-StO₂). Peripheral tissue oxygenation using this novel technology has not been described in neonates. Objectives: To examine the relationship between short-term RRS-StO₂ measurements and central venous saturation (ScvO₂) and pulse oximetry (SpO₂) in preterm and term neonates. Methods: Ninety-seven term neonates had buccal and plantar RRS-StO₂ measurements performed. In 15 preterm neonates, similar measurements were obtained in conjunction with ScvO₂ in the first week of life. Simultaneous SpO₂ and heart rate were also recorded. Results: In healthy neonates, buccal RRS-StO₂ values negatively correlated with the day of life. No correlation existed between buccal and plantar RRS-StO₂ values and ScvO₂ or SpO₂. Greater intra-patient plantar RRS-StO₂ variability was seen in preterm neonates with increasing respiratory support. Conclusions: Neonatal RRS-StO₂ measurements are feasible short term but do not correlate with ScvO₂ and SpO₂. Healthy neonates had greater differences and variability in RRS-StO₂ values, illustrating an evolving microcirculation not detected with pulse oximetry. Greater RRS-StO₂ variability in sick neonates requiring respiratory support may indicate microcirculatory instability despite being within target SpO₂ ranges. Further study is needed to establish if RRS-StO₂ monitoring is an accurate representation of tissue oxygenation.

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Section: Discussionmentioning

confidence: 99%

Direct Measurement of Tissue Oxygenation in Neonates via Resonance Raman Spectroscopy: A Pilot Study

Iyengar

Gaillardetz²,

Tighiouart³

et al. 2017

Neonatology

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“…Massey [3] identified 6 common image capture and analysis problem areas in sublingual side-stream darkfield videos: illumination, duration, focus, content, stability, and pressure. The criteria introduced are an objective way to assess the quality of image acquisition, with the goal of selecting videos of adequate quality for analysis.…”

Section: Introductionmentioning

confidence: 99%

Brightness and Contrast Modification in Ultrasonography Images Using Edge Detection Results

et al. 2016

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“…Operators should be properly trained in microcirculatory imaging. They should be familiar with the recommendations of the round table conference held in Amsterdam in 2006 15 and with the quality criteria developed by Massey et al 13 . These six criteria (illumination, duration, focus, content, stability, pressure) are the foundation of high quality and trustworthy data.…”

Section: Discussionmentioning

confidence: 99%

“…Select the frame interval eligible for analysis and click the 'Crop Video' button. Note: Videos are acceptable if movement is within ½ of the field view 13 . 2.…”

Section: Offline Analysismentioning

confidence: 99%

Transcutaneous Microcirculatory Imaging in Preterm Neonates

Elteren

Jonge

2015

JoVE

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Microcirculatory imaging (MI) is a relatively new research tool mainly used in the intensive care setting. MI provides a clear view of the smallest capillaries, arterioles and venules. The magnifying effect visualizes the flow pattern of erythrocytes through these vessels.It's non-invasive character makes it suitable to apply in (preterm) neonates, even in cardiorespiratory unstable patients. In adults and children, MI is mainly performed sublingually, but this is not possible in preterm infants as these cannot cooperate and the size of the probe is problematic. In preterm infants, MI is therefore performed transcutaneously. Their thin skin makes it possible to obtain high quality images of peripheral microcirculation.In this manuscript we will demonstrate the method of transcutaneous MI in preterm infants. We will focus on the different techniques and provide tips to optimize image quality. The highlights of software settings, safety and offline analysis are also addressed. Video LinkThe video component of this article can be found at

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The microcirculation image quality score: Development and preliminary evaluation of a proposed approach to grading quality of image acquisition for bedside videomicroscopy

Cited by 164 publications

References 13 publications

Direct Measurement of Tissue Oxygenation in Neonates via Resonance Raman Spectroscopy: A Pilot Study

Direct Measurement of Tissue Oxygenation in Neonates via Resonance Raman Spectroscopy: A Pilot Study

Brightness and Contrast Modification in Ultrasonography Images Using Edge Detection Results

Transcutaneous Microcirculatory Imaging in Preterm Neonates

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