頭頸部がんのイメージング低酸素:現在の状況,課題,見通し
Wenhui Huang1,2,3, Nemin Li1, Sheng Zhu4
1State Key Laboratory of Bioactive Molecules and Druggability Assessment, the First Affiliated Hospital, Jinan University, Guangzhou, 510632, China.
Theranostics
|August 27, 2025
まとめ
低酸素イメージングの進歩は,頭頸部がん (HNC) を検出し,治療反応を追跡する新しい方法を提供します. これらの非侵襲的なテクニックは 患者の改善のために パーソナライズされた治療を導くものです
科学分野:
- 腫瘍学
- 医療用イメージング
- 生物医学工学
背景:
- 低酸素症は,腫瘍の進行と治療抵抗を促すことで,頭頸がん (HNC) のアウトカムを著しく悪化させる.
- 正確で非侵襲的な低酸素症の検出は,HNCの効果的な管理と治療の有効性の評価に不可欠です.
- 腫瘍の低酸素を標的とするのが ガン治療の関心分野です
研究 の 目的:
- 頭頸部がんの低酸素標的探査と画像技術における最近の進歩をレビューする.
- パーソナライズド・セラピーにおける低酸素画像の臨床的応用と指導的役割を強調する.
- HNCの管理における低酸素画像の改善のための将来の方向性について議論する.
主な方法:
- 低酸素イメージングプローブと技術に関する最新の文献のレビュー.
- クリニカル・ヒポキシア検出のためのポジートロン放出トモグラフィー (PET) と磁気共鳴画像 (MRI) に焦点を当てる.
- 様々な低酸素イメージングのメカニズム,強み,限界の分析.
主要な成果:
- 低酸素画像,特にPETとMRIは,HNCの臨床応用において有望である.
- これらのテクニックは,腫瘍の低酸素を評価することによって,個別化された治療戦略を導くのに役立ちます.
- 最近の進歩には,新型の探査機と改善されたイメージング技術が含まれる.
結論:
- 低酸素画像は,頭頸部がんの治療を改善するために不可欠です.
- 将来の研究は,探査機の安全性を最適化し,多様式画像を統合し,データ分析のための機械学習を利用することに焦点を当てるべきです.
- 標準化された3D in vitroモデルは,臨床前試験の腫瘍低酸素異質性をより良く再現するために必要である.
関連する概念動画
Cancer Therapies
7.9K
Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
7.9K
Hypoxia
1.2K
Hypoxia is a medical condition characterized by an inadequate oxygen supply to body tissues. It typically manifests as a bluish discoloration of the skin and mucosae, especially in fair-skinned individuals, when hemoglobin (Hb) saturation drops below 75%.
Types of Hypoxia
There are four primary types of hypoxia, each resulting from a different cause:
1. Anemic hypoxia: This type occurs due to insufficient oxygen delivery caused by a lack of red blood cells (RBCs) or RBCs with abnormal or...
Types of Hypoxia
There are four primary types of hypoxia, each resulting from a different cause:
1. Anemic hypoxia: This type occurs due to insufficient oxygen delivery caused by a lack of red blood cells (RBCs) or RBCs with abnormal or...
1.2K
Radiological Investigation III: Pulmonary Angiogram and PET Scan
167
Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
167
Adaptive Mechanisms in Cancer Cells
5.9K
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
5.9K
Radiological Investigation II: MRI and Ventilation Perfusion Scan
221
Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
221
Imaging Studies VII: Vascular Imaging
54
DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
54


