Revvity IVM In Vivo Microscopy System
| Brand | Revvity |
|---|---|
| Origin | South Korea |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Import Status | Imported |
| Model | IVM |
| Imaging Modality | Optical (Confocal & Two-Photon) |
| Animal Model | Mouse |
| Frame Rate | 30 fps or 50 fps @ 512 × 512 pixels |
| Spatial-Temporal Resolution | 4D motion compensation (X, Y, Z + time) |
| Tunable Laser Wavelength Range | 690–1050 nm |
Overview
The Revvity IVM In Vivo Microscopy System is a high-performance, benchtop-integrated platform engineered for dynamic, high-resolution intravital imaging in live murine models. Leveraging dual-modal optical detection—confocal and two-photon excitation—the system enables longitudinal, subcellular visualization of biological processes within intact physiological environments. Its core measurement principle relies on nonlinear optical excitation (for deep-tissue two-photon imaging) and pinhole-confined fluorescence detection (for optical sectioning in superficial layers), combined with real-time volumetric acquisition synchronized to physiological motion. Designed specifically for murine applications, the IVM system addresses critical challenges in intravital microscopy: motion-induced image degradation, thermal instability, and prolonged experimental viability. It supports true 4D (x, y, z, t) data capture with hardware-accelerated motion compensation, making it suitable for imaging highly dynamic tissues such as lung parenchyma, beating myocardium, and peristaltic intestinal vasculature.
Key Features
- Benchtop-integrated architecture combining confocal and two-photon modalities in a single optical path—eliminating alignment drift and enabling seamless modality switching without sample repositioning.
- High-speed polygon-based scanning mechanism delivering up to 50 frames per second at 512 × 512 pixel resolution, optimized for tracking rapid cellular events including immune cell migration, synaptic vesicle trafficking, and calcium wave propagation.
- Real-time 4D motion compensation algorithm integrated with hardware-synchronized respiratory and cardiac gating—enabling artifact-free volumetric reconstruction from moving organs without post-acquisition registration.
- Integrated animal life-support station featuring closed-loop thermoregulation (heated stage + radiant warming), non-invasive ECG and respiration monitoring, and automated feedback control to maintain physiological homeostasis during extended imaging sessions (≥4 hours).
- Modular surgical interface support—including cranial, dorsal skinfold, abdominal, and tracheal window chambers—designed for sterile, long-term implantation and repeated imaging across multiple timepoints under GLP-compliant workflows.
Sample Compatibility & Compliance
The IVM system is validated for use with C57BL/6, BALB/c, and immunocompromised (e.g., NSG) mouse strains aged 6–12 weeks and weighing 18–25 g. All optical components comply with IEC 60825-1:2014 (laser safety classification Class IV, with interlocked beam path enclosure). The animal handling subsystem meets ISO 10993-1 biocompatibility requirements for chronic implant interfaces. Data acquisition protocols are compatible with ALARA (As Low As Reasonably Achievable) laser exposure guidelines per ANSI Z136.1. System software architecture supports audit trails and electronic signatures aligned with FDA 21 CFR Part 11 requirements for regulated preclinical studies.
Software & Data Management
The proprietary IVM Acquisition Suite provides unified control of laser power, scan parameters, motion compensation thresholds, and life-support variables via a deterministic real-time kernel. Raw data are stored in standardized OME-TIFF format with embedded metadata (including timestamp, laser wavelength, objective ID, and physiological sensor logs). Volume rendering, co-registration across sessions, and semi-automated cell tracking (using ITK-SNAP–compatible segmentation pipelines) are natively supported. Export modules integrate with MATLAB, Python (via Bio-Formats), and commercial platforms including Imaris and Arivis Vision4D. All processing workflows retain full traceability for GMP/GLP audits.
Applications
- Immunology: Real-time tracking of T-cell infiltration into tumor microenvironments and lymph node trafficking dynamics.
- Neuroscience: Longitudinal observation of dendritic spine remodeling, microglial surveillance behavior, and blood–brain barrier permeability changes in neuroinflammatory models.
- Oncology: Quantification of angiogenic sprouting, metastatic seeding efficiency, and therapy-induced vascular normalization in orthotopic and PDX models.
- Pulmonary Biology: Functional assessment of alveolar macrophage motility, neutrophil swarming kinetics, and surfactant protein distribution during acute lung injury.
- Cardiovascular Research: High-temporal-resolution imaging of endothelial calcium signaling, platelet adhesion under shear flow, and fibroblast activation in pressure-overload hypertrophy.
FAQ
Is the IVM system compatible with genetically encoded fluorescent reporters (e.g., GCaMP, tdTomato)?
Yes—the tunable laser range (690–1050 nm) supports optimal excitation of red-shifted fluorophores, including mCherry, tdTomato, jRGECO1a, and near-infrared FPs such as iRFP670.
Can the system be upgraded to support multiplexed spectral unmixing?
Spectral detection modules with 16-channel PMT arrays and linear unmixing algorithms are available as optional field-installable upgrades, compliant with ICS/IDS file standards.
What level of technical support is provided for method development?
Revvity offers on-site application engineering support for protocol optimization, including window surgery validation, anesthesia regimen tuning, and motion compensation parameter calibration—documented per SOP-IM-001.
Does the system meet requirements for preclinical contract research organization (CRO) validation?
Yes—the IVM platform includes IQ/OQ/PQ documentation templates, calibration certificates traceable to NIST standards, and full validation packages for GLP-compliant study execution.
