インドシアニングリーン (ICG) 光 vs. Tc-99m リンパシンチグラフィー: 皮膚メラノーマにおけるセンチネルリンパ節検出の最適化-A 系統的レビューとメタ解析
Matteo Matteucci1, Antonio Pesce2, Bruno Cirillo3
1Department of Medicine and General Surgery, University of Milan, 20122 Milan, Italy.
Journal of clinical medicine
|February 13, 2026
まとめ
インドシアニングリーン (ICG) 近赤外線 (NIR) 画像は,メラノーマのステージングにおいてテクネチウム-99m (Tc-99m) よりも多くのセンチネルリンパ節 (SLN) を特定します. しかし,両方の方法は,転移結節と患者全体のアウトカムを検出する際に,比較可能な正確性を示しています.
科学分野:
- 腫瘍学 腫瘍学
- 外科腫瘍学外科腫瘍学
- 診断用イメージング
背景:
- センチネルリンパ節 (SLN) バイオプシは,メラノーマのステージ決定と治療決定に不可欠です.
- 伝統的なSLNマッピングでは,テクネチウム99m (Tc-99m) 放射性コロイドを使用しています.
- インドシアニングリーン (ICG) 光成像は,SLN生検 (SLNB) の新たな代替手段です.
研究 の 目的:
- SLNBにおけるTc-99mリンパシンチグラフィと比較したICG近赤外線 (NIR) 画像の診断精度を評価する.
- ICG-NIRとTc-99mの方法による偽陰性率と転移性SLNの検出を比較する.
主な方法:
- 12件の研究のシステマティック・レビューとメタ解析が行われました.
- プライマリアウトカム:偽陰性率.
- 二次的アウトカム:特定されたSLN数,検出された転移性SLN数,および特定された転移性患者数.
主要な成果:
- ICGは,Tc-99m (OR:0.41) よりも有意に多くのSLNを特定しました.
- ICGとTc-99mの間の転移性ノードまたは患者の検出において,有意な違いは見つかりませんでした.
- 偽陰性率は比較可能であった (RD:0.03).
結論:
- ICG-NIRイメージングは,より多くのSLNを特定しますが,Tc-99mに匹敵する転移検出率を持っています.
- ICG-NIRは,SLNBのためのTc-99mの信頼性の高い代替品または補足です.
- ICGのスタンドアロン診断の役割を確認するために,将来的な研究が必要です.
関連する概念動画
Detailed Structure and Function of Lymph Nodes
5.1K
Lymph nodes are bean-shaped structures that cluster along the lymphatic vessels in the inguinal, axillary, and cervical regions. Each node is divided into compartments by a capsule that extends trabeculae inward.
From a histological perspective, lymph nodes can be split into two main areas: the superficial cortex and the deep medulla. The outer cortex is populated by dendritic cells, macrophages, and B lymphocytes, which are densely packed into follicles. When these B-lymphocytes are presented...
From a histological perspective, lymph nodes can be split into two main areas: the superficial cortex and the deep medulla. The outer cortex is populated by dendritic cells, macrophages, and B lymphocytes, which are densely packed into follicles. When these B-lymphocytes are presented...
5.1K
Node Analysis for AC Circuits
684
Consider an angioplasty system featuring a catheter equipped with a turbine, a critical tool for removing plaque deposits from coronary arteries. This intricate medical device operates using a circuit model reminiscent of a dual-node RLC circuit powered by a current-controlled voltage source.
To unravel the complexities of this system, nodal analysis is employed, a powerful technique founded on Kirchhoff's current law (KCL), which remains valid for phasors. AC circuits can effectively be...
To unravel the complexities of this system, nodal analysis is employed, a powerful technique founded on Kirchhoff's current law (KCL), which remains valid for phasors. AC circuits can effectively be...
684
Review and Preview
8.4K
In statistics, several tools are used to interpret the data. Measures of central tendency represent the characteristics of the data, such as mean, median, and mode. Additionally, measures of variance like standard deviation and range are used to find the spread of data from the mean. Relative standing measures the distance between data locations. Commonly used measures of relative standings are percentile, z score, and quartiles.
Percentiles are a type of fractile that partition data into...
Percentiles are a type of fractile that partition data into...
8.4K
Review and Preview
11.6K
Data are individual items of information obtained from a population or sample. Data may be classified as qualitative (categorical), quantitative continuous, or quantitative discrete. Because it is not practical to measure the entire population in a study, researchers use samples to represent the population. A random sample is a representative group from the population chosen by using a method that gives each individual in the population an equal chance of being included in the sample. Random...
11.6K
Green Algae
904
Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...
904
Random and Systematic Errors
15.3K
Scientists always try their best to record measurements with the utmost accuracy and precision. However, sometimes errors do occur. These errors can be random or systematic. Random errors are observed due to the inconsistency or fluctuation in the measurement process, or variations in the quantity itself that is being measured. Such errors fluctuate from being greater than or less than the true value in repeated measurements. Consider a scientist measuring the length of an earthworm using a...
15.3K


