Avaliação semiológica da palidez: concordância entre observadores e comparação com níveis séricos de hemoglobina

Silva, Rosemeri Maurici da; Machado, Carlos Alexandre

doi:10.1590/s1516-84842010000600007

Cited by 10 publications

(6 citation statements)

References 8 publications

(8 reference statements)

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“…To carry out a preliminary and instantaneous diagnosis, the study of anamnesis and the physical examination are often used in clinical practice [14][15][16][17][18][19][20][21][22]. Health professionals perform a physical examination of anatomical sites such as conjunctiva, tongue, palmar crease, nail beds since they are indicators to raise suspicion of anemia, but it must also be said that there are less optimistic findings, for example, Da Silva et al [21] evaluated the correlation between the opinions expressed by different doctors and pointed out that the ideal condition for examining skin color is with natural daylight or without direct light on the skin: Therefore the different ambient lighting can influence a correct diagnosis. However, also the result conceived by the examiner may differ from one another depending upon their expertise level.…”

Section: Introductionmentioning

confidence: 99%

Semantic Segmentation of Conjunctiva Region for Non-Invasive Anemia Detection Applications

Kasiviswanathan¹,

Bai²,

Simone

et al. 2020

Electronics

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Technology is changing the future of healthcare, technology-supported non-invasive medical procedures are more preferable in the medical diagnosis. Anemia is one of the widespread diseases affecting the wellbeing of individuals around the world especially childbearing age women and children and addressing this issue with the advanced technology will reduce the prevalence in large numbers. The objective of this work is to perform segmentation of the conjunctiva region for non-invasive anemia detection applications using deep learning. The proposed U-Net Based Conjunctiva Segmentation Model (UNBCSM) uses fine-tuned U-Net architecture for effective semantic segmentation of conjunctiva from the digital eye images captured by consumer-grade cameras in an uncontrolled environment. The ground truth for this supervised learning was given as Pascal masks obtained by manual selection of conjunctiva pixels. Image augmentation and pre-processing was performed to increase the data size and the performance of the model. UNBCSM showed good segmentation results and exhibited a comparable value of Intersection over Union (IoU) score between the ground truth and the segmented mask of 96% and 85.7% for training and validation, respectively.

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Section: Introductionmentioning

confidence: 99%

Semantic Segmentation of Conjunctiva Region for Non-Invasive Anemia Detection Applications

Kasiviswanathan¹,

Bai²,

Simone

et al. 2020

Electronics

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“…To diagnose severe anemia, as described in [17], IMCI (Integrated Management of Childhood Illness) suggests using the paleness of the palm, but since a greater presence of melanin can influence the color of the palm, the authors suggest to add further signs examination: they show that it is possible to correctly classify the anemia status of many children, through simple clinical signs, for example conjunctival pallor, which can therefore be added to the guidelines for estimating anemia in children. Da Silva, et al [19], compare pallor with the level of hemoglobin in the blood and evaluate the correlation between the opinions expressed by different doctors. The authors point out that the ideal condition for examining skin color is with natural daylight or without direct light on the skin.…”

Section: Clinical Evaluation Of the Pallor Of Exposed Human Tissuesmentioning

confidence: 99%

“…To carry out a correct diagnosis, careful study of the anamnesis, an effective physical examination and a series of essential instrumental examinations are necessary. During the physical examination, heart rate, respiratory rate and conjunctival pallor of the tongue or nail bed are evaluated in [12][13][14][15][16][17][18][19]. The physical examination, therefore, assumes an important role in the diagnosis process, and whatever innovative tool is designed, it must take this into account.…”

Section: Introductionmentioning

confidence: 99%

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Estimate of Anemia with New Non-Invasive Systems—A Moment of Reflection

et al. 2020

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Anemia is a global public health problem with major consequences for human health. About a quarter of the world population shows a hemoglobin concentration that is below the recommended thresholds. Non-invasive methods for monitoring and identifying potential risk of anemia and smartphone-based devices to perform this task are promising in addressing this pathology. We have considered some well-known studies carried out on this topic since the main purpose of this work was not to produce a review. The first group of papers describes the approaches for the clinical evaluation of anemia focused on different human exposed tissues, while we used a second group to overview some technologies, basic methods, and principles of operation of some devices and highlight some technical problems. Results extracted from the second group of papers examined were aggregated in two comparison tables. A growing interest in this topic is demonstrated by the increasing number of papers published recently. We believe we have identified several critical issues in the published studies, including those published by us. Just as an example, in many papers the dataset used is not described. With this paper we wish to open a discussion on these issues. Few papers have been sufficient to highlight differences in the experimental conditions and this makes the comparison of the results difficult. Differences are also found in the identification of the regions of interest in the tissue, descriptions of the datasets, and other boundary conditions. These critical issues are discussed together with open problems and common mistakes that probably we are making. We propose the definition of a road-map and a common agenda for research on this topic. In this sense, we want to highlight here some issues that seem worthy of common discussion and the subject of synergistic agreements. This paper, and in particular, the discussion could be the starting point for an open debate about the dissemination of our experiments and pave the way for further updates and improvements of what we have outlined.

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confidence: 99%

Palidez como dado semiológico de avaliação de anemias

Stracieri

2010

Rev. Bras. Hematol. Hemoter.

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A study published in this issue of the Journal of Hematology and Hemotherapy "Clinical evaluation of Pallor: Correlation between observers and comparison with hemoglobin levels" (1) emphasizes the importance of this semiologic evaluation by analyzing the main sign of anemia: conjunctival pallor. This is a simple, fast and free method of assessing anemia. This work compares two types of observers (doctors and medical students) thereby highlighting the importance of teaching semiology during the medicine course. The results demonstrated that there was a difference between the two groups of observers, where physicians, with more experience, presented more accurate results (correlation between the clinical sign and hemoglobin levels). This highlights the need to teach semiology to medical students. In summary, although this paper is characterized by subjective aspects of evaluation and not very complex in its analysis, it is original. 3602-2609; (16) 3234-5483; (16) 9794-2600 E-mail: beatrizstracieri@gmail.com Scientific commentaries / Comentários científicos Rev Bras Hematol Hemoter. 2010;32(6):430-433 Ana Beatriz Stracieri Resumo AbstractPallor, an important clinical sign of anemia, is assessed by physicians and medical students. There is a necessity to better train medicine students.

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Avaliação semiológica da palidez: concordância entre observadores e comparação com níveis séricos de hemoglobina

Cited by 10 publications

References 8 publications

Semantic Segmentation of Conjunctiva Region for Non-Invasive Anemia Detection Applications

Semantic Segmentation of Conjunctiva Region for Non-Invasive Anemia Detection Applications

Estimate of Anemia with New Non-Invasive Systems—A Moment of Reflection

Palidez como dado semiológico de avaliação de anemias

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