Myocardial Microbleed Detection Using Cardiac Iron Imaging

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Solution Overview

Problem

There is a need for effective methods to detect, diagnose, and treat hypertension-related cardiovascular diseases, particularly to identify and manage myocardial microbleeds, which are associated with hypertension and can lead to adverse outcomes such as cardiac arrhythmia and sudden cardiac death.

Innovation Solution

The methods involve imaging techniques like SPECT, PET, CT, and MRI to detect iron deposits in the heart, which are indicative of myocardial microbleeds, and administering iron chelating agents or heme-binding proteins to treat or reduce the severity of cardiovascular diseases.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If imaging techniques and iron detection methods are used to detect myocardial microbleeds, then diagnostic accuracy is improved, but device complexity and cost increase

Engineering Contradiction:
Improvedetection accuracyVSAvoidimaging system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent uses iron deposits as an intermediary marker to indicate myocardial microbleeds. Instead of directly imaging the microbleeds themselves, the method detects iron deposits that accumulate at the site of microbleeds, making the invisible visible through a detectable proxy substance

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent employs imaging techniques that detect changes in magnetic properties (MRI) or radioactive tracer accumulation (SPECT/PET) to visualize iron deposits. The iron deposits alter the imaging signal characteristics, enabling detection of microbleed locations through these property changes

Inventive Principle:
Principle #32Color changes

2Reliability

If iron chelating agents and heme-binding proteins are administered to treat myocardial microbleeds, then treatment effectiveness is improved, but drug complexity and potential side effects increase

Engineering Contradiction:
Improvetreatment effectivenessVSAvoidtreatment protocol complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent converts the harmful effect of iron deposits (which cause tissue damage and inflammation at microbleed sites) into a beneficial treatment target. By administering iron chelating agents that specifically bind to and remove the excess iron, the treatment transforms the harmful iron accumulation into a removable substance that, when eliminated, resolves the tissue damage

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The treatment methodology extracts or removes the harmful iron deposits from the myocardial tissue using iron chelating agents. These agents bind to iron and facilitate its removal from the body, directly eliminating the pathological substance causing the microbleed damage

Inventive Principle:
Principle #2Taking out (Extraction)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

These methods enable early detection and management of myocardial microbleeds, reducing the risk of cardiovascular diseases and associated complications by targeting iron deposits in the heart.

Implementation Method 1

MRI to detect iron deposits in the heart

Methodology Applied
Scientific EffectMagnetic resonance imaging: Magnetic Field

Implementation Method 2

PET to detect iron deposits in the heart

Methodology Applied
Scientific EffectPositron emission tomography: Radioactive Decay

Implementation Method 3

SPECT to detect iron deposits in the heart

Methodology Applied
Scientific EffectSingle-photon emission computed tomography: Radioactive Decay

Implementation Method 4

administering iron chelating agents or heme-binding proteins to treat or reduce the severity of cardiovascular diseases

Methodology Applied
Scientific EffectChelation: Chemical Bonding

Data Source

PatentEP4051702B1Theranostics for hypertension induced myocardial microbleeds
Publication Date: 2026.04.08 CEDARS SINAI MEDICAL CENT
  • EP4051702B1 patent drawingFigure 1A~1B

AI summary

The invention relates to methods of cardiovascular imaging and/or measurement of blood markers for detecting, diagnosing and/or prognosing cardiac or myocardial microbleeds, especially in subject with hypertension and cardiovascular diseases. Treatment methods are also provided for subjects identified, diagnosed, prognosed, or detected with cardiac or myocardial microbleeds. In some embodiments, the subject has hypertension-induced microbleeds, but has not had a myocardial infarction or reperfusion therapy.