Iodine131HippuranQualityChecker

Iodine-131 Hippuran

radiopharmaceuticals QC URS & FS input.csv output.json radiochemical purity radionuclidic purity iodine
Open selection

Utility description: Iodine-131 Hippuran

Iodine131 Hippuran Quality Checker — radiopharmaceutical QC utility.

The source description did not contain a separate English section. The utility uses deterministic rule-based checks for Iodine-131 Hippuran using input.csv fields and generates output.json for QA/QC review.

Input format:
BatchNumber,RadiochemicalPurityPercent,FreeIodine131Percent,BenzoicAcidImpurityPercent,SpecificActivityMBqPerMg,pH,EndotoxinsEU,SterilityTest,TotalActivityMBq,AppearanceScore

Key source description in Russian:
Iodine-131 Hippuran Quality Checker — Йод-131 Гиппуран (Ортоиодгиппурат натрия)

ℹ️  Утилита проверяет критические параметры радиофармпрепарата для оценки функции почек:
    • Радиохимическая чистота (≥95%)
    • Примесь свободного Йода-131 (≤3%)
    • Примесь бензойной кислоты (≤2%) — продукт гидролиза!
    • Удельная активность, рН (6.0–8.0), эндотоксины, стерильность

⚠️  КРИТИЧНО: Гиппуран используется для измерения эффективного почечного плазмотока (ЭПФ).
    Примеси свободного йода и бензойной кислоты имеют ДРУГОЙ механизм распределения!
    Свободный йод → щитовидная железа/желудок (ложный фон).
    Бензойная кислота → печень (артефакты, занижение почечного клиренса).
    Даже 5% примесей делают расчет ЭПФ НЕКОРРЕКТНЫМ!

Использование:
  Iodine131HippuranQualityChecker.exe                            → демо-режим (вывод в консоль)
  Iodine131HippuranQualityChecker.exe input.csv output.json      → оценка ваших данных

Формат input.csv:
BatchNumber,RadiochemicalPurityPercent,FreeIodine131Percent,BenzoicAcidImpurityPercent,SpecificActivityMBqPerMg,pH,EndotoxinsEU,SterilityTest,TotalActivityMBq,AppearanceScore

Пример (стерильность: 0=стерильно, 1=контаминация, внешний вид: 0=норма):
  I131-HIP-2026-001,97.5,1.5,1.0,35.0,7.0,45.0,0,185.0,0

— ЗАЧЕМ ЭТО НУЖНО?
Ортоиодгиппурат натрия I-131 — классический радиофармпрепарат для динамической нефросцинтиграфии.
• Имитирует парааминогиппуровую кислоту (ПАГ) — «золотой стандарт» измерения почечного кровотока.
• Активно секретируется проксимальными канальцами почек (транспортёр OAT1).
• Используется для оценки эффективного почечного плазмотока (ЭПФ), диагностики обструкции, оценки трансплантата.

⚠️  КРИТИЧЕСКИ ВАЖНО:
• Радиохимическая чистота ≥95% — гарантия корректности количественных расчетов.
• Свободный Йод-131 ≤3% — йодид не секретируется канальцами, создает внепочечный фон.
• Бензойная кислота ≤2% — продукт гидролиза амидной связи гиппурана. Захватывается печенью, искажает кривые активности.
• рН 6.0–8.0 — стабильность препарата и безопасность введения.
• С

input.csv

BatchNumber,RadiochemicalPurityPercent,FreeIodine131Percent,BenzoicAcidImpurityPercent,SpecificActivityMBqPerMg,pH,EndotoxinsEU,SterilityTest,TotalActivityMBq,AppearanceScore
I131-HIP-2026-001,97.5,1.5,1.0,35.0,7.0,45.0,0,185.0,0
I131-HIP-2026-002,93.0,4.0,3.0,28.0,7.2,50.0,0,180.0,0

URS & FS — User Requirements and Functional Specification

This document describes the controlled interface and behaviour of Iodine131HippuranQualityChecker for Iodine-131 Hippuran.

Domain limits and critical parameters

Key fragments from the source description are shown below. Before production use, limits must be verified against the approved specification, registration dossier and local SOPs.
  • BatchNumber,RadiochemicalPurityPercent,FreeIodine131Percent,BenzoicAcidImpurityPercent,SpecificActivityMBqPerMg,pH,EndotoxinsEU,SterilityTest,TotalActivityMBq,AppearanceScore
  • ℹ️ Утилита проверяет критические параметры радиофармпрепарата для оценки функции почек:
  • • Радиохимическая чистота (≥95%)
  • • Примесь свободного Йода-131 (≤3%)
  • • Примесь бензойной кислоты (≤2%) — продукт гидролиза!
  • ⚠️ КРИТИЧНО: Гиппуран используется для измерения эффективного почечного плазмотока (ЭПФ).
  • Примеси свободного йода и бензойной кислоты имеют ДРУГОЙ механизм распределения!
  • Свободный йод → щитовидная железа/желудок (ложный фон).
  • ⚠️ КРИТИЧЕСКИ ВАЖНО:
  • • Радиохимическая чистота ≥95% — гарантия корректности количественных расчетов.
  • • Свободный Йод-131 ≤3% — йодид не секретируется канальцами, создает внепочечный фон.
  • • Бензойная кислота ≤2% — продукт гидролиза амидной связи гиппурана. Захватывается печенью, искажает кривые активности.

URS — User Requirements Specification

IDRequirementCriticalityAcceptance criterion
URS-001The utility shall accept an input.csv file with the exact headers defined in the data contract.HighThe file is processed without manual header editing.
URS-002The utility shall perform deterministic QC evaluation for Iodine-131 Hippuran using input values, approved limits and domain rules.HighEach input row receives a PASS / WARNING / FAIL status.
URS-003The utility shall validate mandatory fields, data types, numeric ranges, units and pharmaceutical/radiochemical plausibility.HighSchema and conversion errors are explicitly reported.
URS-004The utility shall identify critical deviations related to radionuclidic purity, radiochemical purity, free radionuclide, impurities, pH, endotoxins and sterility when such fields are present.HighA critical deviation causes FAIL or a separate critical finding.
URS-005The utility shall generate output.json with machine-readable results, source values, warnings and failures.HighJSON is suitable for LIMS/ELN/MES integration and QA/QC review.
URS-006The utility shall not use machine learning to decide conformance.MediumThe result is based on explicit rules, thresholds and input values.
URS-007The utility shall preserve traceability between batch number, input values, applied rules and final status.HighThe output contains the batch identifier and the list of checked parameters.
URS-008The documentation shall support IQ/OQ preparation and inspection discussion with FDA/EMA/Roszdravnadzor or local regulators.MediumURS & FS, input.csv/output.json contract and test scenarios are supplied with the utility.

input.csv contract

#FieldTypeSamplePurpose
1BatchNumberstringI131-HIP-2026-001Batch or lot identifier used for traceability.
2RadiochemicalPurityPercentstring97.5Radiochemical purity; confirms the labelled chemical form and binding quality.
3FreeIodine131Percentdecimal1.5Free radionuclide / unbound species; important for non-target uptake and toxicity.
4BenzoicAcidImpurityPercentstring1.0Controlled impurity or residual material.
5SpecificActivityMBqPerMgdecimal35.0Radioactivity value used for release, decay or dose-related assessment.
6pHdecimal7.0Solution pH; relevant for stability, compatibility and administration.
7EndotoxinsEUdecimal45.0Bacterial endotoxins; critical for parenteral administration.
8SterilityTestflag / boolean0Sterility result; critical release parameter.
9TotalActivityMBqdecimal185.0Radioactivity value used for release, decay or dose-related assessment.
10AppearanceScorestring0Visual appearance / clarity parameter.
BatchNumber,RadiochemicalPurityPercent,FreeIodine131Percent,BenzoicAcidImpurityPercent,SpecificActivityMBqPerMg,pH,EndotoxinsEU,SterilityTest,TotalActivityMBq,AppearanceScore
I131-HIP-2026-001,97.5,1.5,1.0,35.0,7.0,45.0,0,185.0,0
I131-HIP-2026-002,93.0,4.0,3.0,28.0,7.2,50.0,0,180.0,0

FS — Functional Specification

IDFunctionImplementation
FS-001CSV importRead input.csv in UTF-8/CSV-compatible format and validate the header and expected columns.
FS-002Schema validationCheck mandatory fields and column count; report unknown or missing key fields.
FS-003Type conversionConvert numeric, flag and text values; invalid formats are recorded as row-level errors.
FS-004Domain rule engineApply domain rules for Iodine-131 Hippuran, including critical limits from the utility description and approved specification.
FS-005Status aggregationProduce final status: FAIL for critical failure, WARNING for non-critical deviation, PASS for conformance.
FS-006JSON exportWrite output.json with detailed checks, source values, warnings, failures and critical findings.
FS-007Audit supportKeep the result structure suitable for review, deviation investigation, calculation reproduction and IQ/OQ preparation.
FS-008Integration contractSupport the production scenario: LIMS/ELN/MES creates input.csv, the utility returns output.json, the portal displays description and documentation.

Example output.json

{
  "utilityId": "iodine131-hippuran-quality-checker",
  "api": "Iodine-131 Hippuran",
  "overallStatus": "PASS|WARNING|FAIL",
  "sourceFile": "input.csv",
  "checks": [
    {
      "parameter": "BatchNumber",
      "value": "I131-HIP-2026-001",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "RadiochemicalPurityPercent",
      "value": "97.5",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "FreeIodine131Percent",
      "value": "1.5",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "BenzoicAcidImpurityPercent",
      "value": "1.0",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "SpecificActivityMBqPerMg",
      "value": "35.0",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "pH",
      "value": "7.0",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "EndotoxinsEU",
      "value": "45.0",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "SterilityTest",
      "value": "0",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    }
  ],
  "criticalFindings": []
}

OQ/PQ test scenarios

IDScenarioExpected result
OQ-001Valid sample rowPASS or acceptable WARNING according to the rules.
OQ-002Mandatory column missingSchema error or FAIL.
OQ-003Non-numeric value in numeric fieldType-conversion error.
OQ-004Critical parameter outside limitFAIL and critical finding.
PQ-001User real batch/lotReviewed result with input.csv and output.json retained.

QA/QC and change control

  • Do not rename columns without updating the validator and test set.
  • Retain input.csv, output.json, executable version and checksum.
  • Before production use, perform IQ/OQ/PQ or equivalent CSV/CSA verification.
  • Critical radiopharmaceutical limits must be verified against the approved specification and local SOPs.

Included in packages

Endocrinology QC Suite

QC package for endocrinology: thyroid, pituitary/peptide hormones, corticosteroids, sex hormones and selected metabolic medicines.

Open

PetRad3: expanded PET/SPECT and radiopharmaceutical QC package

A curated suite for PET/SPECT radiopharmaceuticals, generator and cyclotron radionuclides, labelled compounds, radiochemical purity, breakthrough, sterility and endotoxin control.

Open

Radiology QC Suite

QC package for radiology and diagnostic imaging: radiopharmaceuticals, PET/SPECT, contrast media, iodinated and gadolinium products, plus particle, sterility and endotoxin checks.

Open

RPH isotope family: radioiodine

I-123, I-124, I-125 and I-131 for diagnostics, therapy, labelling and purity control.

Open

RPH organ/system: oncology and theranostics

Tumour imaging, PSMA/FAPI/receptor tracers, immuno-PET, targeted radionuclide therapy and radioembolization.

Open

RPH organ/system: renal and urinary

Renography, GFR/ERPF, renal uptake, DMSA/MAG3/DTPA and bladder-related workflows.

Open

RPH use case: radionuclide therapy and theranostics

Lu-177, Ac-225, Ra-223, Y-90, Ho-166, Sm-153, Sr-89, Re-188, Tb-161, I-131 and other therapeutic radiopharmaceuticals: activity, purity, free metal, daughters and toxicological constraints.

Open

RPH workflow: generators and isotope purity

Generator eluate, breakthrough, radionuclidic purity, isotope mix and starting radionuclides.

Open

RPH workflow: product release QC

Assay, purity, sterility, endotoxins, pH, impurities, appearance and batch-release checks.

Open

RPH: combined radiopharmaceutical QC package

RPH combines PetRad, PetRad2 and PetRad3 into one umbrella package for PET/SPECT, therapeutic radionuclides, generators, labelled compounds, decay calculations, sterility, endotoxins and radiochemical/radionuclidic purity.

Open