QUANTIFICATION OF RETINAL DAMAGE DURING CARDIOPULMONARY BYPASS - COMPARISON OF COMPUTER AND HUMAN ASSESSMENT

被引：6

作者：

JAGOE, JR ^{[1
]}

BLAUTH, CI ^{[1
]}

SMITH, PL ^{[1
]}

ARNOLD, JV ^{[1
]}

TAYLOR, KM ^{[1
]}

WOOTTON, R ^{[1
]}

机构：

[1] HAMMERSMITH HOSP,ROYAL POSTGRAD MED SCH,DEPT SURG,LONDON W12 0NN,ENGLAND

来源：

IEE PROCEEDINGS-I COMMUNICATIONS SPEECH AND VISION | 1990年 / 137卷 / 03期

关键词：

D O I：

10.1049/ip-i-2.1990.0024

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A comparison of retinal fluorescein angiograms taken before cardiopulmonary bypass with those taken just before the end of operation, has shown that microvascular occlusions can develop during operation. Quantification of the retinal damage in terms of the area of nonperfusion depends on careful examination by humans. Assessment of these areas is necessarily subjective and digital image analysis would be preferable to make the measurements more objective. Visual or automatic comparison of images is facilitated by prior geometrical alignment. A method for registering retinal images which has been used successfully on 65 image pairs is described. Techniques for automatically detecting changes in the microvascular structure are illustrated. Using a subset of 40 good quality image pairs, good agreement between computer detected occlusions and human assessment of nonperfusing areas is reported.

引用

页码：170 / 175

页数：6

共 7 条

[1]

BLAUTH C, 1986, LANCET, V2, P837

[2]

GRANLUND GH, 1981, LITHISY0481 LINK U I

[3]

JAGOE R, IN PRESS COMPUTERS B

[4]

KNUTTSON H, 1982, THESIS LINKOEPING U

[5]

PELI E, 1986, OPHTHALMOLOGY, V93, P1575

[6] INCREASE OF PALLOR AND FLUORESCEIN-FILLING DEFECTS OF THE OPTIC DISK IN THE FOLLOW-UP OF OCULAR HYPERTENSIVES MEASURED BY COMPUTERIZED IMAGE-ANALYSIS [J].

TUULONEN, A ;

NAGIN, P ;

SCHWARTZ, B ;

WU, DC .

OPHTHALMOLOGY, 1987, 94 (05) :558-563

[7]

VARMA R, 1988, OPHTHALMIC SURG LAS, V19, P183

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