Preface -- 1 Digital Twins in the Metaverse: An Overview and Their Applications in Healthcare -- 1.1 Introduction -- 1.2 Introduction to Metaverse -- 1.3 Metaverse-Based Technologies -- 1.4 Immersive Technology -- 1.5 Digital Twin -- 1.6 Various Other Potential Metaverse Health Applications -- 1.7 Conclusion -- 2 Metaverse-Based Digital Twin and Investigating Its Applications in Dentistry -- 2.1 Introduction -- 2.2 Various Models of Metaverse -- 2.3 Benefits of Metaverse in Dental Healthcare -- 2.4 Digital Human -- 2.5 Blockchain Uses in Dentistry and Health Care -- 2.6 Metaverse in Dentistry and Healthcare -- 2.7 Conclusion -- 3 Role of Metaverse in Cardiology and in Cardiac Catheterization -- 3.1 Introduction -- 3.2 Metaverse Definition -- 3.3 The Rise of the Metaverse Application in Healthcare -- 3.4 The Promise of the Metaverse in Cardiology and Cardiovascular Health -- 3.5 Application of Metaverse in Cardiac Catheterization Laboratory -- 3.6 Components of the Future Catheterization Laboratory -- 3.7 Incorporating Metaverse with Cardiology and Developing the Cardioverse -- 3.8 Challenges to Face and the NFTs Integration -- 3.9 Conclusion -- 4 Cancer and the Metaverse: An Introduction to Digital Twins -- 4.1 Introduction -- 4.2 How Metaverses and Digital Twins Affect Healthcare -- 4.3 Introduction to Metaverse -- 4.4 Digital Twins -- 4.5 Other Applications of DT in Cancer -- 4.6 Ethical and Legal Challenges of the Metaverse -- 4.7 Conclusion -- 5 Digital Twins in the Metaverse and Their Application to Personalized Medicine -- 5.1 Introduction -- 5.2 Role of DT in Medicine -- 5.3 Various Technologies of Metaverse -- 5.4 Digital Twin (DT) Framework -- 5.5 Applications -- 5.6 Integrating Variables from Many Types, Places, and Times into Digital Twins -- 5.7 Conclusion -- 6 Metaverse-Based Digital Twins in Ophthalmology -- 6.1 Introduction -- 6.2 Metaverse in Ophthalmology -- 6.3 Metaverse-Based Different Technologies in Ophthalmology -- 6.4 Application of Metaverse in Ophthalmology -- 6.5 Additional Metaverse Applications in Optometry -- 6.6 Use of Digital Twins -- 6.7 DT Based Application of Metaverse in Ophthalmology -- 6.8 Telemedicine for Patient Consultation -- 6.9 Conclusion -- 7 The Potential of Metaverse-Based Digital Twin in Surgery -- 7.1 Introduction -- 7.2 Metaverse: An Introduction -- 7.3 AI in Surgical Metaverse -- 7.4 Present Understanding of XR, AR, and VR Platforms -- 7.5 Potential for Advancement in Surgical Healthcare -- 7.6 Medical Devices for Patient-to-Image Registration Hardware -- 7.7 AR/VR Surgical Metaverse: Practical Applications -- 7.8 Patient Digital Twin -- 7.9 Digital Twins (DT) to Guide End-Effectors -- 7.10 Metaverse, XR, and CAD/CAM in Surgical Process -- 7.11 Conclusion -- 8 Potential of Interactive VR and Digital Twin for Drug Development and Clinical Trials -- 8.1 Introduction -- 8.2 Introduction to CADD and VR Drug/Molecule Design -- 8.3 Applications of VR Relevant to Drug Discovery -- 8.4 Interactive Molecular Dynamics in Virtual Reality (IMD-VR) -- 8.5 Generative AI and Digital Twins -- 8.6 Digital Twins in Preclinical Drug Discovery -- 8.7 Digital Twins in Clinical Trials -- 8.8 Digital Twins and In Silico Research -- 8.9 The "TopDown" Digital Twin -- 8.10 Conclusion -- 9 The Integration of Metaverse in Psychiatry and Mental Health -- 9.1 Introduction -- 9.2 Metaverse -- 9.3 The Relationship Between the Metaverse and Psychiatry -- 9.4 Metaverse in Mental Health and Psychiatric Disorders -- 9.5 Non-Invasive Brain Stimulation in the Metaverse -- 9.6 Conclusion -- 10 Integration of Metaverse-Based Wearables for Creating Digital Healthcare -- 10.1 Introduction -- 10.2 Metaverse Framework and Building Block Technologies -- 10.3 Metaverse Wearables Coupled with XR Technology -- 10.4 Conclusion -- 11 Potential of Metaverse for Creating Intelligent Healthcare -- 11.1 Introduction -- 11.2 Metaverse -- 11.3 Application in Healthcare -- 11.4 Additional Applications of Metaverse in Healthcare -- 11.5 Metaverses in Healthcare for Medical Domains -- 11.6 Conclusion -- 12 Integration of Digital Metaverse in Educating Medical Students for Better Understanding -- 12.1 Introduction -- 12.2 The Function of Metaverses in Education -- 12.3 Impact of the Metaverse on Healthcare Infrastructures -- 12.4 Employing Metaverse to Improve Medical Education -- 12.5 Implications for Healthcare Education -- 12.6 Additional Applications in Research -- 12.7 Conclusion -- References -- Index.