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Literature DB >> 7934254

Visualisation of retinal blood flow by laser speckle flow-graphy.

Abstract

A new method is demonstrated to visualise the microcirculation map of the human retina using a dynamic laser speckle effect. The retina is illuminated with a diode laser spot through a retinal camera, and its speckle image is detected by an area sensor. The output signal from the sensor is digitised, and the data for more than a hundred scannings of the speckle image are stored in a mass image memory. The difference between a pair of successive image data was calculated and integrated for each pixel. The results were displayed in colour graphics showing the spatial distribution of the blood flow in the retina.

Entities: Species

Mesh：

Year: 1994 PMID： 7934254 DOI： 10.1007/bf02512526

Source DB: PubMed Journal: Med Biol Eng Comput ISSN： 0140-0118 Impact factor: 2.602

5 in total

1. Fundus camera based retinal LDV.

Authors: C E Riva; J E Grunwald; S H Sinclair; K O'Keefe
Journal: Appl Opt Date: 1981-01-01 Impact factor: 1.980

2. Evaluation of blood flow by laser speckle image sensing. Part 1.

Authors: H Fujii; K Nohira; Y Yamamoto; H Ikawa; T Ohura
Journal: Appl Opt Date: 1987-12-15 Impact factor: 1.980

3. Blood flow observed by time-varying laser speckle.

Authors: H Fujii; T Asakura; K Nohira; Y Shintomi; T Ohura
Journal: Opt Lett Date: 1985-03-01 Impact factor: 3.776

4. Laser Doppler measurements of blood velocity in human retinal vessels.

Authors: G T Feke; C E Riva
Journal: J Opt Soc Am Date: 1978-04

5. A new instrument for continuous measurement of tissue blood flow by light beating spectroscopy.

Authors: G E Nilsson; T Tenland; P A Obert
Journal: IEEE Trans Biomed Eng Date: 1980-01 Impact factor: 4.538

5 in total

33 in total

1. Pulse-wave analysis of optic nerve head circulation is significantly correlated with brachial-ankle pulse-wave velocity, carotid intima-media thickness, and age.

Authors: Tomoaki Shiba; Mao Takahashi; Yuichi Hori; Takatoshi Maeno
Journal: Graefes Arch Clin Exp Ophthalmol Date: 2012-02-21 Impact factor: 3.117

2. Pulse waveform analysis in the optic nerve head circulation reflects systemic vascular resistance obtained via a Swan-Ganz catheter.

Authors: Tomoaki Shiba; Mao Takahashi; Ryuya Hashimoto; Tadashi Matsumoto; Yuichi Hori
Journal: Graefes Arch Clin Exp Ophthalmol Date: 2016-02-18 Impact factor: 3.117

3. Relationship between glycosylated hemoglobin A1c and ocular circulation by laser speckle flowgraphy in patients with/without diabetes mellitus.

Authors: Chieko Shiba; Tomoaki Shiba; Mao Takahashi; Tadashi Matsumoto; Yuichi Hori
Journal: Graefes Arch Clin Exp Ophthalmol Date: 2016-07-20 Impact factor: 3.117

4. Imaging of choroidal hemodynamics in eyes with polypoidal choroidal vasculopathy using laser speckle phenomenon.

Authors: Goro Watanabe; Hitoshi Fujii; Shoji Kishi
Journal: Jpn J Ophthalmol Date: 2008-07-27 Impact factor: 2.447

5. The relationships between the pulsatile flow form of ocular microcirculation by laser speckle flowgraphy and the left ventricular end-diastolic pressure and mass.

Authors: Tomoaki Shiba; Mao Takahashi; Chieko Shiba; Tadashi Matsumoto; Yuichi Hori
Journal: Int J Cardiovasc Imaging Date: 2018-06-01 Impact factor: 2.357

Visualisation of retinal blood flow by laser speckle flow-graphy.

1. Fundus camera based retinal LDV.

2. Evaluation of blood flow by laser speckle image sensing. Part 1.

3. Blood flow observed by time-varying laser speckle.

4. Laser Doppler measurements of blood velocity in human retinal vessels.

5. A new instrument for continuous measurement of tissue blood flow by light beating spectroscopy.

1. Pulse-wave analysis of optic nerve head circulation is significantly correlated with brachial-ankle pulse-wave velocity, carotid intima-media thickness, and age.

2. Pulse waveform analysis in the optic nerve head circulation reflects systemic vascular resistance obtained via a Swan-Ganz catheter.

3. Relationship between glycosylated hemoglobin A1c and ocular circulation by laser speckle flowgraphy in patients with/without diabetes mellitus.

4. Imaging of choroidal hemodynamics in eyes with polypoidal choroidal vasculopathy using laser speckle phenomenon.

5. The relationships between the pulsatile flow form of ocular microcirculation by laser speckle flowgraphy and the left ventricular end-diastolic pressure and mass.

6. Flux or speed? Examining speckle contrast imaging of vascular flows.

7. Non-invasive in situ monitoring of bone scaffold activity by speckle pattern analysis.

8. Intravitreal bevacizumab treatment reduces ocular blood flow in retinopathy of prematurity: a four-case report.

9. Assessment of ocular microcirculation in patients with end-stage kidney disease.

10. Decreased ocular blood flow after photocoagulation therapy in neonatal retinopathy of prematurity.