The System

One SystemFive LayersZero Manual Intervention

From raw scanner data to clinical-grade metabolic intelligence — an end-to-end AI Agentic Architecture that replaces the entire conventional MRS workflow.

Architecture

Vertically Integrated. Purpose-Built. Agentic.

METLiT’s architecture is not a general-purpose AI model applied to MRS. It is a purpose-built system where specialized AI Agents are designed for each processing stage and vertically integrated on top of MRS physics first principles.

01
Layer 01

Acquisition Gateway

Receives data acquired via standard protocols and normalizes the format.

Unified processing of raw data formats from GE, Philips, and Siemens. No special sequences required — works with data you are already acquiring.

Vendor-agnostic data ingestion & normalization
02
Layer 02

Signal Processing Agent Layer

Autonomously assesses and optimizes spectral signal quality.

Phase correction, frequency alignment, baseline fitting, and artifact detection — each performed autonomously by dedicated Agents. Automates every step that previously required manual preprocessing while maintaining physics-based consistency.

Autonomous spectral preprocessing with physics constraints
03
Layer 03

Quantification Engine

Deep learning engine separates and quantifies 17 individual metabolites.

A deep neural network trained on decades of MRS physics knowledge separates individual metabolite signals from overlapping spectra. Bayesian approach quantifies uncertainty for each result, enabling clinical confidence assessment.

Physics-informed deep learning quantification with uncertaintyLee & Kim, Magn Reson Med (2019, 2020, 2022)
04
Layer 04

Clinical Intelligence Agent Layer

Performs contextual reasoning on quantified metabolic profiles.

Normal range comparison, anomaly detection, disease-specific pattern matching, and institution-specific reference data — all autonomously executed by the Clinical Reasoning Agent.

Context-aware metabolic interpretation & anomaly detection
05
Layer 05

Delivery & Integration

Generates institution-customized reports and integrates with existing systems.

Delivered as a cloud-native SaaS platform with PACS integration, API access, and automated audit-ready documentation.

Institution-customized reporting & system integration

Clinical-grade metabolic intelligence — delivered in seconds

Clinical Pipeline

Turning Science into Clinical Impact

METLiT is building a portfolio of MRS-based clinical applications. Each project targets a specific unmet need where metabolic insight can change patient outcomes.

Priority Target Disease

Finding Treatable Dementia: NPH

Normal Pressure Hydrocephalus (NPH) is a cause of dementia treatable with a simple shunt surgery. However, its symptoms closely resemble Alzheimer’s and Parkinson’s, making accurate differentiation extremely difficult.

3.7%[5]

of the population aged 65+ has NPH

49%[6]

specificity of MRI alone for NPH

90.5%[4]

accuracy of MRS-based shunt outcome prediction

3 min

additional MRS scan time on existing MRI

For Patients

  • No hospitalization required

    Outpatient MRI workflow — no 3-7 day CSF tap admission

  • Non-invasive diagnosis

    Standard MRI scan + 3 min MRS — no lumbar puncture

  • Faster path to treatment

    From symptom to surgical decision in days, not weeks

For Institutions

  • No specialist dependency

    AI-automated — no MRS Ph.D. or NPH subspecialist required

  • Fits existing MRI workflow

    Standard protocols, all major vendors, just +3 min scan time

  • New diagnostic revenue stream

    Unlock MRS capability already built into every scanner

Workflow Comparison

From Weeks of Uncertainty to Minutes of Clarity

Conventional Process

NPH Symptom Onset

Gait disturbance · Cognitive decline · Urinary incontinence

MRI Scan

Specificity only 49%⁶

~1 hr

Specialist Referral

Transfer to hospital with NPH specialists

Weeks

Hospitalization + CSF Tap Test

3-7 day admission · Sensitivity 29.7%⁷

3-7 days

Shunt Surgery Decision

Prolonged overall timeline

Weeks-long process · Hospitalization required

With METLiT

NPH Symptom Onset

Gait disturbance · Cognitive decline · Urinary incontinence

MRI + MRS Scan

Just +3 min added to existing MRI

+3 min

AI Automated Analysis

METLiT Agentic System

<15 sec

Metabolic Profile Report

17 metabolites quantified + uncertainty

Instant

Shunt Surgery Decision Support

No hospitalization · Outpatient workflow

Same-day results · Outpatient workflow
Multi-center international clinical studies are currently in progress.

The Platform

METLiT MRS Analytics
(MAIA)

An intuitive clinical interface. No MRS expertise required.

Platform screenshot coming soon

Demo video coming soon

The Agent

METLiT MRS Agent
(MIRA)

An AI-native conversational interface for MRS interpretation. Ask questions, get answers — powered by the full Agentic pipeline.

MIRA — METLiT MRS Intelligence & Research Agent interface

Deployment

Configured for Your Context

Hospitals & Clinics

  • ·Cloud-based AI-native MRS platform
  • ·Fully automated processing & quantification
  • ·Intuitive clinical interface — no MRS expertise required
  • ·Research-backed metabolite reference ranges

Deploy without changing your existing MRI workflow

Pharma & Research

  • ·MRS clinical study design consulting
  • ·Advanced analytics with 17-metabolite resolution
  • ·Patient stratification & selection support
  • ·Longitudinal monitoring & treatment response tracking

Dramatically more efficient research data analysis

Imaging & Device Partners

  • ·MRI vendor-neutral compatibility
  • ·White-label API integration
  • ·Modular architecture for scanner console/viewer embedding

Unlock the latent value of MRS capability already built into scanners

See the system for yourself.

References (7)
  1. [1]Lee HH, Kim H. Magn Reson Med 82.1 (2019): 33-48.
  2. [2]Lee HH, Kim H. Magn Reson Med 84.4 (2020): 1689-1706.
  3. [3]Lee HH, Kim H. Magn Reson Med 88.1 (2022): 38-52.
  4. [4]Shiino A, et al. J Neurol Neurosurg Psychiatry. 2004;75(8):1141-8.
  5. [5]Andersson J, et al. PloS one 14:e0217705. 2019.
  6. [6]Chen CH, et al. J Clin Neurosci. 2022;105:9-15.
  7. [7]Rydja J, et al. Fluids Barriers CNS 18, 18. 2021.