Non-Invasive Testing device for Anaemia (NITA)

非侵入性贫血检测设备 (NITA)

• 批准号: MR/Y503356/1
• 负责人: Winok Lapidaire
• 金额: $ 21.71万
• 依托单位: University of Oxford
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2024
• 资助国家: 英国
• 起止时间: 2024 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=MR%2FY503356%2F1
• 关键词: Non; Invasive; Testing; device; Anaemia

Anaemia arises from a reduction in the number of healthy red blood cells or the level of haemoglobin necessary to e!ectively transport oxygen throughout the body. It is a significant global health concern, a!ecting 1.6 billion individuals worldwide. Mild cases of anaemia often go unnoticed due to their nonspecific symptoms, such as fatigue, headaches, and hair loss. However, it is crucial to diagnose and address this condition promptly, as untreated anaemia can contribute to chronic heart failure and chronic kidney disease. Unfortunately, current point-of-care solutions are not able to distinguish between di!erent types of anaemia and prescribe suitable treatments. As a result, the gold standard for anaemia diagnosis still relies on laboratory blood tests, which come with limitations in terms of point-of-care capability, accessibility, and biases related to poor standardisation of assays and low sample quality.We have developed a portable and user-friendly device capable of detecting anaemia rapidly and non-invasively and facilitating appropriate treatment by distinguishing anaemia due to iron deficiency from other causes. Our device, named The Vascular Imaging Tool for the Auricle (VITA), utilises high-resolution imaging technology to capture detailed images of blood cells and small vessels within the human body. Unlike existing non-invasive devices that can only measure properties in bulk tissue samples, VITA can analyse characteristics of hundreds of individual cells, thereby facilitating rapid point-of-care testing for iron deficiency anaemia. VITA is a low-cost device, and its unique ability to measure these parameters without requiring consumables or trained operators makes it particularly well-suited for addressing anaemia in low- and middle-income countries.Our market research highlighted a pressing clinical need for a more convenient method of diagnosing anaemia, one that does not rely on medically trained personnel or laboratories. VITA's metrics such as mean corpuscular haemoglobin and mean corpuscular volume have high acceptance with medical staff as they are clinically used. VITA's capability to detect morphological features of red blood cells gives it a clear technical advantage over existing non-invasive devices currently employed for anaemia detection, but conversations with end users and preliminary discussions with potential investors revealed that validation data is crucial for progression towards commercialisation.Ongoing clinical studies have informed our device development through a human-centred approach with a focus on usability and have provided valuable data to validate VITA's microvascular imaging performance. However, they do not supply the necessary blood test data to validate its applications in anaemia. Hence, the objectives of this award are to assess VITA's performance of Hb testing and its ability to identify iron deficiency anaemia against the clinical gold standard of laboratory blood tests. We plan to achieve this by optimising our existing device specifically for anaemia, developing customised image analysis software capable of automatically extracting the relevant red blood cell parameters from the acquired images, and conducting a clinical validation study.By enabling more accessible and less burdensome monitoring of this highly prevalent disease, our innovation has the potential to significantly reduce the current health and economic burdens associated with anaemia, particularly for women and children who are disproportionately affected. Furthermore, it has the power to transform healthcare for individuals who currently lack access to laboratory tests.

贫血是由于健康红细胞数量减少或有效地将氧气输送到全身所需的血红蛋白水平减少而引起的。这是一个重大的全球健康问题，影响着全世界 16 亿人。轻度贫血病例因其非特异性症状（例如疲劳、头痛和脱发）而常常被忽视。然而，及时诊断和解决这种情况至关重要，因为未经治疗的贫血可能导致慢性心力衰竭和慢性肾脏疾病。不幸的是，当前的护理点解决方案无法区分不同类型的贫血并开出合适的治疗方法。因此，贫血诊断的黄金标准仍然依赖于实验室血液检测，而实验室血液检测在护理点能力、可及性以及与检测标准化差和样本质量低相关的偏差方面存在局限性。便携式、用户友好的设备，能够快速、无创地检测贫血，并通过区分缺铁性贫血和其他原因引起的贫血，促进适当的治疗。我们的设备名为耳廓血管成像工具 (VITA)，利用高分辨率成像技术捕获人体内血细胞和小血管的详细图像。与只能测量大量组织样本特性的现有非侵入性设备不同，VITA 可以分析数百个单个细胞的特征，从而促进缺铁性贫血的快速即时检测。 VITA 是一种低成本设备，其无需消耗品或训练有素的操作员即可测量这些参数的独特能力使其特别适合解决低收入和中等收入国家的贫血问题。我们的市场研究强调了对诊断贫血的更方便的方法，一种不依赖于受过医学培训的人员或实验室的方法。 VITA的平均红细胞血红蛋白和平均红细胞体积等指标在临床使用时得到了医务人员的高度认可。 VITA 检测红细胞形态特征的能力使其比目前用于贫血检测的现有非侵入性设备具有明显的技术优势，但与最终用户的对话以及与潜在投资者的初步讨论表明，验证数据对于商业化的进展至关重要。正在进行的临床研究通过以人为本的方法，注重可用性，为我们的设备开发提供了信息，并提供了有价值的数据来验证 VITA 的微血管成像性能。然而，他们没有提供必要的血液测试数据来验证其在贫血方面的应用。因此，该奖项的目的是评估 VITA 的 Hb 检测性能及其根据实验室血液检测的临床黄金标准识别缺铁性贫血的能力。我们计划通过优化我们现有的专门针对贫血的设备、开发能够从获取的图像中自动提取相关红细胞参数的定制图像分析软件以及进行临床验证研究来实现这一目标。对于这种高度流行的疾病，我们的创新有可能显着减轻当前与贫血相关的健康和经济负担，特别是对受影响尤为严重的妇女和儿童而言。此外，它还有能力改变目前无法获得实验室检测的个人的医疗保健。