Sidestream dark field imaging of the serosal microcirculation during gastrointestinal surgery

Bruin, A. F. J. de; Kornmann, Verena N.N.; Sloot, K. van der; Vugt, Jeroen L. van; Gosselink, M.; Smits, Anke B.; Ramshorst, Bert van; Boerma, E. Christiaan; Noordzij, Peter G.; Boerma, Djamila; Iterson, Mat van

doi:10.1111/codi.13250

Cited by 35 publications

(33 citation statements)

References 37 publications

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“…This resulted in pressure artifacts and image drift, which, in some cases, even made it impossible to obtain stable video clips suitable for image analysis. The weight of the SDF device (± 0.5 kg), manual image adjustments on the device, bowel peristalsis and conduction of the movement by respiration and heart activity through the intestinal passage were main contributing factors to decreased image stability and impaired image acquisition [5]. These image stability problems were also reported by Balestra et al [7] and Lindert et al [8 ]in the sublingual use of SDF imaging or its predecessor, orthogonal polarization spectral imaging.…”

Section: Discussionmentioning

confidence: 99%

“…All patients gave written informed consent. The first group of patients (SDF group) consisted of an historical group with previously published data on SDF imaging during open gastrointestinal surgery without the use of an IAS [5]. The data on the second group (SDF + IAS group) was collected using the same study protocol, but after the introduction of the combined use of an IAS mounted on a SDF camera.…”

Section: Methodsmentioning

confidence: 99%

“…Image drift during automated image stabilization was measured as the translation (in pixels) in either the x- or y-direction of an image with respect to the first image of a video sequence, resulting in loss of pixels per image (fig. 2) [5,8]. The parameters for microvascular assessment were used to compare the effects of negative pressure in the SDF + IAS group versus the SDF group, beside the possible effects seen at switch-on during measurements.…”

Section: Methodsmentioning

confidence: 99%

“…Currently, SDF imaging is predominantly applied sublingually to assess microvascular dysfunction in several disease states [3,4]. Recently, our research group validated the use of the SDF on the bowel serosa during gastrointestinal surgery in a feasibility study [5]. We demonstrated that serosal microvascular imaging with an SDF device is feasible and that the assessment of microcirculatory parameters is comparable to the sublingual area.…”

Section: Introductionmentioning

confidence: 93%

“…This may cause pressure artifacts and image drift or even make it impossible to obtain stable video clips suitable for image analysis. Significant image drift, increased time to stable image (compared to with sublingual assessment) and an inability to obtain stable videos were reported in our previous study [5]. In this study, we developed and investigated the use of an image acquisition stabilizer (IAS) in combination with the SDF camera for the microcirculatory assessment of bowel perfusion during open gastrointestinal surgery.…”

Section: Introductionmentioning

confidence: 99%

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Use of an Image Acquisition Stabilizer Improves Sidestream Dark Field Imaging of the Serosa during Open Gastrointestinal Surgery

Bruin

Tavy²,

Sloot³

et al. 2016

J Vasc Res

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Aim: To investigate whether an image acquisition stabilizer (IAS) mounted on the sidestream dark field camera (SDF) during gastrointestinal surgery improves image stability and acquisition. Methods: Serosal SDF imaging was compared with SDF imaging combined with an IAS (SDF + IAS) during gastrointestinal surgery. Stability was assessed as the image drift in pixels and the time to obtain stable images. The success rate was determined as the percentage of analyzable images after recording. The effect of negative pressure from the IAS was determined during single-spot measurements and by comparing microvascular parameters between groups. Data are presented as mean ± SD. Results: Sixty serosal measurements were performed per group; 87% were successful in the SDF group and 100% in the SDF + IAS group (p = 0.003). Image drift in the SDF group was 148 ± 36 versus 55 ± 15 pixels in the SDF + IAS group; p < 0.001. Time to stable image was 96 ± 60 s in the SDF group versus 57 ± 31 s in the SDF + IAS group; p = 0.03. No effect of negative pressure was seen. Conclusion: The use of an IAS mounted on an SDF camera during serosal microvascular assessment improves the success rate of image acquisition and stability and reduces the time to stable image with no effect on the microcirculation.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Use of an Image Acquisition Stabilizer Improves Sidestream Dark Field Imaging of the Serosa during Open Gastrointestinal Surgery

Bruin

Tavy²,

Sloot³

et al. 2016

J Vasc Res

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Effects of topical estrogen therapy on the vaginal microcirculation in women with vulvovaginal atrophy

Diedrich

Kastelein

Verri

et al. 2019

Neurourology and Urodynamics

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AimsThis study aims to assess vaginal wall angioarchitecture and function in women with vulvovaginal atrophy (VVA) and determine the effect of topical estrogen on the vaginal microcirculation.Materials and MethodsIn this prospective observational study, incident dark field imaging was used to assess the vaginal microcirculation. In patients with VVA, measurements were performed before and after treatment with topical estrogen and compared to measurements performed in women without VVA. Vaginal angioarchitecture was studied by assessing microcirculatory architecture and capillary tortuosity scores at four regions of the vaginal wall. In addition, the capillary density and microvascular flow index (MFI) were obtained.ResultsSeventeen women were included in this study. Of these, eight women were diagnosed with VVA and nine women were considered healthy controls. Significant differences were observed between groups with regard to microcirculatory architecture scores. The architecture of the microvasculature in women with VVA was characterized by the appearance of a vascular network without capillary loops, whereas an array of capillary loops was predominantly seen in women without VVA. After estrogen treatment, no difference in architecture scores between patients and healthy controls was observed. Capillary tortuosity, capillary density, and MFI were similar in both groups before and after estrogen treatment.ConclusionsThe architecture of vaginal microvasculature is altered in patients with VVA. In case of similar vascular architecture, capillary tortuosity and density seem to be comparable. Treatment with topical estrogen results in restoration of the angioarchitecture.

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Monitoring of the Sublingual Microcirculation at the Bedside: Yes, It Is Possible and Useful

Tarazona

Harrois

Duranteau

2020

Annual Update in Intensive Care and Emergency Medicine

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Sidestream dark field imaging of the serosal microcirculation during gastrointestinal surgery

Abstract: Sidestream dark field imaging is a very promising technique for bowel microcirculatory visualization and assessment. It is comparable to sublingual assessment and the analysis produces a similar outcome with slightly differing anatomical features.

Cited by 35 publications

References 37 publications

Use of an Image Acquisition Stabilizer Improves Sidestream Dark Field Imaging of the Serosa during Open Gastrointestinal Surgery

Use of an Image Acquisition Stabilizer Improves Sidestream Dark Field Imaging of the Serosa during Open Gastrointestinal Surgery

Effects of topical estrogen therapy on the vaginal microcirculation in women with vulvovaginal atrophy

Monitoring of the Sublingual Microcirculation at the Bedside: Yes, It Is Possible and Useful

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