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inspection inspection cardiac dissection techniques scope tricuspid valve pulmonary artery inspection six-knife cardiac dissection forensic medicine specifications unit cascade structure asbestos cement downpipes deep learning algorithm
GA/T 170-2019 in English

GA/T 170-2019 in English

VALID

Forensic medicine—Specifications for examination of sudden deaths

  • Issued on:2019-10-14
  • Implemented on:2019-12-01
  • File Format:PDF
  • Delivery:Via email within 1~3 business days
Price(USD): $160.00
$156.00


Introduction

Core changes in the standard revision

Comparison dimensions 1997 edition XXXX edition
Dissection techniques Traditional cardiac dissection methods Newly added Six-knife cardiac dissection techniques
Scope of inspection Basic organ inspection Inspection of 12 special parts such as peripheral nerves and pituitary gland
Pathological requirements Conventional pathological sections Mandatory requirement for combined diagnosis of biochemical inspection and toxicological analysis

Key technological breakthroughs

Six-knife cardiac dissection method

The standard specifies for the first time the systematic cardiac dissection process:

  1. Right atrium incision: Cut straight from the inferior vena cava to the superior vena cava, and simultaneously explore the tricuspid valve
  2. Pulmonary artery inspection: Precisely cut 1 cm to the right of the anterior interventricular groove, retaining the left coronary artery branch
  3. Myocardial cross-section: Use an "8"-shaped section to observe the scope of myocardial infarction, with the spacing controlled at <1cm

Typical application cases

Pulmonary embolism inspection procedures

In a case of sudden death of a 45-year-old male, the forensic doctor followed the standard clause 5.1.3:

  • In situ cutting of the pulmonary artery trunk to the hilar branch
  • A 12 cm thrombus was found embolizing the right pulmonary artery
  • Through tracing through the gastrocnemius cross section, a deep vein thrombosis in the lower limb was found

Implementation suggestions

Multidisciplinary collaboration mechanism

It is recommended to establish a pathology-biochemistry-imaging collaborative workflow:

Phase Operation points Technical support
Preliminary investigation Collect implantable defibrillator data Medical equipment analysis technology
Dissection process Synchronous recording of high-definition images GA/T 1198 specification
Pathological diagnosis At least 5 myocardial slice sites Immunohistochemistry technology

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