The development of quantum-enhanced MRI technologies presents a novel frontier for early disease detection and continuous monitoring of human health. The magnetic resonance imaging (MRI) modality has become an essential pillar of modern healthcare systems and is the most widely used imaging technology for human health screening. It provides non-invasive and high-resolution visualisation of both anatomy and dynamics associated with diseases. Nevertheless, there are several diseases for which a MRI alone is not sufficient or highly challenging for early detection. Hence, advanced solutions are required. Quantum-enhanced MRI offers a promising path to overcome the limitations of conventional MRI by providing unprecedented enhancements to sensitivity, contrast, and spatiotemporal resolution compared with the state-of-the-art MRI. These enhancements have the potential to enable the imaging of emerging biomarkers related to several diseases such as Alzheimer’s, Parkinson’s, cardiovascular diseases, metabolic disorders and cancer at the early stage. Also, quantum-enhanced MRI provides non-intrusive monitoring frameworks that allow continuous observation of physiological parameters such as temperature, heart rate, and molecular dynamics while preserving the privacy of individuals. Such frameworks make it possible for a portable/bedside MRI system operating at ambient temperature to remotely monitor human health and wellness anywhere. Quantum-enhanced MRI is, however, still in its infancy and comes with several challenges. It is necessary to conduct a systematic literature review of quantum-enhanced MRI technologies covering its theoretical foundations, technological advances, potential clinical applications, implications for human health monitoring, existing challenges and future directions.
The development of quantum-enhanced MRI technologies presents a novel frontier for early disease detection and continuous monitoring of human health. The magnetic resonance imaging (MRI) modality has become an essential pillar of modern healthcare systems and is the most widely used imaging technology for human health screening. It provides non-invasive and high-resolution visualisation of both anatomy and dynamics associated with diseases. Nevertheless, there are several diseases for which a MRI alone is not sufficient or highly challenging for early detection. Hence, advanced solutions are required. Quantum-enhanced MRI offers a promising path to overcome the limitations of conventional MRI by providing unprecedented enhancements to sensitivity, contrast, and spatiotemporal resolution compared with the state-of-the-art MRI. These enhancements have the potential to enable the imaging of emerging biomarkers related to several diseases such as Alzheimer’s, Parkinson’s, cardiovascular diseases, metabolic disorders and cancer at the early stage. Also, quantum-enhanced MRI provides non-intrusive monitoring frameworks that allow continuous observation of physiological parameters such as temperature, heart rate, and molecular dynamics while preserving the privacy of individuals. Such frameworks make it possible for a portable/bedside MRI system operating at ambient temperature to remotely monitor human health and wellness anywhere. Quantum-enhanced MRI is, however, still in its infancy and comes with several challenges. It is necessary to conduct a systematic literature review of quantum-enhanced MRI technologies covering its theoretical foundations, technological advances, potential clinical applications, implications for human health monitoring, existing challenges and future directions.
Medical imaging, a cornerstone of modern diagnostics that underpins early disease detection and personalized therapy, continues to confront fundamental physical limitations inherent to conventional modalities, including suboptimal sensitivity and specificity, limited resolution, and ionizing radiation risks. Quantum imaging, leveraging principles such as entanglement, superposition, and quantum sensing, has emerged as a transformative paradigm with the potential to transcend these limitations. This review systematically summarizes the physical principles, technological advancements, and major clinical applications of quantum technologies in medical imaging. We elaborate on several cutting-edge modalities, including quantum dot probes for targeted imaging and surgical navigation, wearable magnetoencephalography facilitated by optically pumped magnetometers, quantum-enhanced magnetic resonance imaging with nanoscale resolution, quantum optical coherence tomography with dispersion cancellation, photon-counting computed tomography for superior spectral imaging, and nuclear medicine imaging that can visualize the molecular microenvironment. Additionally, the roles of quantum computing and quantum artificial intelligence in accelerating and optimizing the image analysis workflow are also discussed. Furthermore, we analyze the technical bottlenecks and translational barriers that currently hinder the widespread clinical implementation of these emerging technologies. Finally, we outline promising future research directions to accelerate clinical translation, underscoring the transformative potential of quantum medical imaging to advance precision diagnostics and personalized medicine.
Cardiovascular diseases (CVDs) remain the leading cause of mortality worldwide, demanding innovations that transcend the limitations of conventional diagnostic modalities. Traditional imaging technologies—such as echocardiography, CT angiography, and MRI—though well-established, often struggle with trade-offs between speed, resolution, and predictive capabilities. Emerging advances in quantum science, particularly quantum computing1 and quantum sensing2, promise to redefine cardiac diagnostics by enabling unprecedented computational power, enhanced imaging fidelity, and predictive analytics. This paper explores the paradigm shift from traditional cardiac imaging to quantum-assisted diagnostics, emphasizing its transformative potential in precision cardiology. Quantum computing harnesses the principles of superposition3, entanglement4, and quantum tunneling5 to perform complex computations at speeds exponentially faster than classical systems. In cardiology, this capability translates into ultra-rapid analysis of massive multi-modal datasets—integrating genetic profiles, imaging scans, wearable sensor data, and electronic health records—to derive predictive risk scores and detect disease progression at its earliest molecular signatures. Quantum machine learning algorithms can identify subtle, non-linear patterns6 in cardiac pathophysiology that conventional statistical models fail to capture, thus enabling clinicians to anticipate adverse events such as arrhythmias, myocardial infarction, or heart failure with higher accuracy and lead time. Quantum sensing further enhances diagnostic precision through highly sensitive magnetometers and photon detectors, capable of mapping cardiac electrophysiology and microvascular changes at nanoscale resolution without invasive procedures. These innovations address current bottlenecks in traditional imaging—such as motion artifacts, limited temporal resolution, and radiation exposure—offering safer, faster, and more detailed diagnostic pathways. By coupling quantum sensors with real-time data processing, clinicians can monitor dynamic cardiac functions continuously, bridging the gap between snapshot diagnostics and continuous cardiovascular health tracking. This research paper presents a comparative analysis of traditional versus quantum-enabled cardiac diagnostics, highlighting the future potential of quantum technologies in cardiac detection and medical assistance. The study emphasizes advancements in imaging clarity, predictive accuracy, and clinical outcome improvement enabled by quantum approaches. A progressive implementation model is proposed, outlining how quantum-assisted systems can be integrated into existing hospital infrastructure through cloud-based quantum computing platforms, thereby reducing costs and minimizing operational disruptions. The paper explores regulatory, ethical, and training considerations essential for the medical community in adopting these emerging technologies. The paper shows that using quantum technology in heart disease diagnosis can make the process much faster and more accurate. This means doctors can plan treatments better and help reduce serious illness by detecting problems early. Quantum methods can also predict heart issues even before symptoms appear, making it possible to screen large groups of people at low cost and without painful tests. In the future, combining quantum-powered artificial intelligence (AI) with telemedicine could bring advanced heart care to people everywhere, especially in areas where hospitals and doctors are limited. In conclusion, combining quantum computing with heart care could bring a big change in how we treat heart diseases. Instead of waiting for problems to appear, doctors could use quantum tools to predict risks early and give more accurate treatments. This can help reduce heart disease worldwide. Even though there are challenges in making these technologies widely available, their potential is huge. This research shows why it is important to adopt such tools early, encourage new ideas, and work together so that patients can benefit from these advances in the near future.
Over the past few decades, medical imaging has revolutionized the way clinicians diagnose, monitor, and treat diseases. However, despite significant advancements in imaging resolution, contrast, and computational reconstruction, several challenges remain unresolved — especially in terms of early-stage detection, noise reduction, and functional imaging at the cellular or molecular level. In recent years, quantum physics has emerged as a disruptive force with the potential to drastically enhance medical imaging technologies through the application of its fundamental principles such as quantum superposition, entanglement, tunneling, and spin dynamics. This research explores the intersection of quantum mechanics and medical imaging engineering, with a primary focus on how quantum phenomena are being utilized to elevate the performance and capability of key imaging modalities like Magnetic Resonance Imaging (MRI), Positron Emission Tomography (PET), and optical-based quantum imaging. The study presents an in-depth analysis of how quantum concepts are applied in practice — such as the role of spin alignment and magnetic resonance in MRI, the use of entangled photon pairs in PET scanning, and the integration of quantum dots in high-contrast optical imaging. Beyond existing technologies, the paper investigates cutting-edge developments including quantum-enhanced sensors, quantum computing for real-time image reconstruction, and the promise of quantum artificial intelligence in image interpretation. By analyzing both theoretical frameworks and experimental findings, the study highlights the significant advantages that quantum technologies bring — such as improved spatial resolution, higher signal-to-noise ratio, and reduced patient exposure to radiation. Despite its promise, the integration of quantum physics into medical imaging is not without challenges. The research discusses limitations such as system decoherence, scalability, clinical costs, and the gap between laboratory research and clinical deployment. In conclusion, this paper argues that while still emerging, the application of quantum physics holds transformative potential for the future of diagnostic imaging, and could ultimately lead to more accurate, efficient, and personalized healthcare.
The neurosciences have pioneered the use of quantum technologies for sensing and imaging the brain.Next-generation technologies promise routes towards low-cost, wearable imaging devices with high spatial and temporal resolution.Much of the progress in our understanding of the brain and our ability to assess brain health relies heavily on magnetic resonance imaging (MRI) and quantum technologies that rely on quantum properties of matter or radiation such, e.g., nuclear spin, entanglement or detection of single quanta.These technologies are undergoing a renaissance in funding and research, which has led to some very exciting developments in recent years, for example, reconstructing images, videos [1,2], and the semantics of entire sentences [3] from brain activity and fMRI data alone.The goal of this perspective is to provide a brief overview of some quantum technologies that may have an impact, for example, on the wearability, precision, and cost of these brain reading approaches.Magnetic resonance imaging (MRI) is a noninvasive approach that relies on a quantum effect whereby charged particles can have a spin and thus interact with an external magnetic field that provides information about the conformation of the spins and of the matter that we are probing.One form of MRI known as functional MRI (fMRI)-which measures brain activity by detecting small changes of blood flow in the brain-can now achieve sub-millimetre resolution, albeit typically with a 5 to 10 second time lag that results from the fact that it measures a blood oxygenation level dependent (BOLD) signal.Another noninvasive technology known as magnetoencelphagraphy (MEG) instead measures the magnetic fields generated as a result of the time-varying voltage signals at the cellular level.The quantum technology utilised here lies not in the physics of the signal itself but rather in the detection, which is typically achieved using the extreme sensitivity of superconducting quantum interference devices (SQUIDs).MEG has lower spatial resolution compared to fMRI of order 3 mm but without the BOLD time-lag.It is clear that using fMRI and MEG to image the brain at ever-finer detail is enabling a deeper understanding of how the brain operates.However, fMRI has relatively high costs that severely limit accessibility and the range of experiments is constrained by the fact that lying down in an MRI scanner is not a "natural" environment in which animals or humans operate.MEG based on SQUIDs is moderately more wearable but still expensive, mostly as a result of the experiments needing to be housed in special rooms that shield the instruments from the
Artificial Intelligence (AI) is revolutionizing diagnostics by enhancing the capabilities of quantum imaging (QI) and quantum sensors (QS) in healthcare. By leveraging AI-driven algorithms, QI achieves superior image resolution, noise reduction, and real-time data analysis, enabling precise visualization of biological structures and early disease detection. AI’s pattern recognition capabilities facilitate the identification of subtle biomarkers and anomalies critical for diagnosing complex conditions, such as cancer and neurodegenerative diseases. Quantum mechanics underpins these advancements, driving breakthroughs in biosensing through quantum dots (QDs), plasmonic biosensors, and non-classical light, which enhance sensitivity and precision. Advanced techniques like quantum Raman spectroscopy and nitrogen-vacancy (NV) center-based sensors enable cutting-edge molecular detection and diagnostics applications. Furthermore, AI optimizes QS functionality, improving the accuracy of physiological and molecular measurements essential for non-invasive diagnostics. Integrating AI with QI systems reduces operational complexity, accelerates diagnostic workflows, and supports multimodal imaging approaches for comprehensive patient assessments. This review demonstrates the synergy between AI and quantum technologies, representing a transformative leap in medical diagnostics, offering unprecedented precision, speed, and accessibility for improved healthcare outcomes.
Quantum computing is quickly revolutionizing medicine, promising unprecedented levels of processing, analysis, and decision-making abilities. This review discusses recent developments in applying quantum computing to medical imaging, diagnostics, and treatment planning. Quantum machine learning and hybrid quantum-classical models have been used by researchers to show improved accuracy, speed, and scalability in medical image classification, segmentation, and disease prediction. Quantum-improved algorithms are being implemented for early detection of multifactorial diseases like cancer and neurologic disorders with potential for advancing clinical prognoses and biomarker discovery. Moreover, quantum cryptography methods are under development to enhance security for private medical information with concerns regarding expanding privacy and security risks. Improvements in quantum neural networks and adaptive hybrid quantum convolutional neural networks (CNNs) also hold promise in enhancing diagnostic efficiency and resource savings. This review synthesizes existing applications, identifies new trends, and delineates challenges and future directions of quantum computing in medicine. It underscores the importance of explainable and interpretable quantum AI systems to maintain clinical trust and utility. The results indicate that quantum technologies, although in their infancy, have transformative potential for precision medicine, personalized therapy, and sophisticated medical decision-making.