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Drug Dissolution: Requirements and Profile Comparison01:14

Drug Dissolution: Requirements and Profile Comparison

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The acceptance criteria for dissolution profile data are anchored in Q values, representing the percentage of drug dissolved within a specified period. This assessment unfolds in three stages:First Stage: The test passes if all six drug dosage units are equal to or greater than Q plus 5%; otherwise, the sample proceeds to the second stage.Second Stage: The average of twelve units must be equal to or greater than Q, with no unit falling below Q - 15% to pass; if not, it progresses to the final...
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Titrimetric Methods: Types and Commonly Used Strategies01:08

Titrimetric Methods: Types and Commonly Used Strategies

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In chemistry, titrimetric methods are broadly classified into three types: volumetric, gravimetric, and coulometric. Volumetric titrations involve measuring the volume of a titrant of known concentration that is required to react completely with an analyte. In gravimetric titrations, the standard solution reacts with the analyte to form an insoluble precipitate, which is filtered, dried, and weighed. In coulometric titrations, current is applied to an electrochemical reaction until the reaction...
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Updated: Mar 1, 2026

Data Acquisition Protocol for Determining Embedded Sensitivity Functions
07:46

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OCTAにおけるセグメンテーション感度の定量化：3つの市販プラットフォームにわたるデバイス固有のプロファイル

Michael Hafner1, Bettina von Livonius1, Daniel Deschler1

  • 1Department of Ophthalmology, LMU University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany.

PloS one
|February 27, 2026
PubMed
まとめ
この要約は機械生成です。

光干渉断層計血管撮影（OCTA）測定値はセグメンテーションシフトに敏感である。デバイス固有のOCTA測定値のばらつきは、研究における標準化された定義と品質管理の必要性を強調している。

背景:

  • 光干渉断層計血管撮影（OCTA）は、網膜微小血管に関する定量的な洞察を提供する。
  • 表層および深層毛細血管層スラブの正確なセグメンテーションは、信頼性の高いOCTA測定値にとって不可欠である。
  • 既存のOCTA測定値は、層セグメンテーション境界の変動の影響を受けやすい可能性がある。

結論:

  • マイクロメートルスケールのスラブ定義の変更は、OCTA由来のエンドポイントを有意に偏らせる可能性がある。
キーワード:
光干渉断層計血管撮影網膜微小血管セグメンテーションOCTA臨床解釈デバイス固有品質管理

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  • デバイスおよび層固有の感度は、標準化されたスラブ定義と品質管理の必要性を強調する。
  • 調整の透明性のある報告と許容誤差閾値の設定は、研究および臨床診療における信頼性の高い解釈に不可欠である。