脈動性耳鳴の患者における放出静脈の拡張:罪人か傍観者か?
Benjamin Soares1, Piers Klein2, Bindu N Setty2
1School of Medicine, Department of Radiology, Boston University, Boston, United States. blsoares@bu.edu.
Neuroradiology
|February 12, 2026
まとめ
エミサリー静脈拡大 (EVs) は,脈動性耳鳴 (PT) の患者でより一般的です. しかし,コンディラールとマストイドのエミサリー静脈の全般的な存在は,PTグループではより低かった. 静脈狭窄症やIIHとの関連は見つかりませんでした.
科学分野:
- 放射線学 放射線学
- 神経外科は神経外科です.
- 耳鼻喉科 (Otorhinolaryngology) は,耳鼻喉科 (Otorhinolaryngology) を専門とする医療機関である.
背景:
- エミッサー静脈 (EV) は,放射線画像で偶然に見つかることが多い.
- 拡大したEVは,脈動性耳鳴 (PT) の発生と関連している.
研究 の 目的:
- PTのある患者およびない患者におけるEVの罹患率と特徴を調査する.
- PT患者と対照群の間のEV直径と周波数を比較するために.
主な方法:
- PTの患者とマッチングしたコントロールを含むケース・コントロール研究.
- イメージング方法には,CTA,CTV,MRIが含まれていました.
- 2人の神経放射線科医がEVを評価し,最大直径を測定しました.
主要な成果:
- 拡張性コンディラルエミサリー静脈 (CEV) とマストイドエミサリー静脈 (MEV) は,PTコホートにおいてより一般的であった.
- MEVの平均直径は,PT患者で有意に大きくなりました.
- 内側門または横側門狭窄症,またはイディオパシー性頭蓋内高血圧に関して,拡張されたEVの有意な差異は観察されなかった.
結論:
- 拡張されたCEVとMEVは,PTを経験している患者でより頻繁です.
- CEV/MEVの全体的な罹患率は,対照群ではより低かった.
- 拡張したEVと静脈狭窄症またはIIHとの間には関連性はありません.
関連する概念動画
02:09Bystander Effect
10.3K
The discussion of bullying highlights the problem of witnesses not intervening to help a victim. This is a common occurrence, as the following well-publicized event demonstrates. In 1964, in Queens, New York, a 19-year-old woman named Kitty Genovese was attacked by a person with a knife near the back entrance to her apartment building and again in the hallway inside her apartment building. When the attack occurred, she screamed for help numerous times and eventually died from her stab wounds.
10.3K
01:30Cardiomyopathy II: Dilated Cardiomyopathy
589
Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
589
01:17Veins
9.0K
Veins are an integral part of our circulatory system, serving as the blood vessels that transport blood from all body regions to the heart. They are a network of hollow tubes that carry blood low in oxygen from the body's cells back to the heart for reoxygenation. Veins are crucial for maintaining the body's overall fluid balance and the continuous circulation of blood.
Structure of Veins:
The structure of veins is specifically designed to assist in the low-pressure transportation of...
Structure of Veins:
The structure of veins is specifically designed to assist in the low-pressure transportation of...
9.0K
01:19Veins of Thorax
2.1K
The azygos system is a crucial part of the body's circulatory system and drains most of the thorax. It comprises the azygos, hemiazygos, and accessory hemiazygos veins.
The azygos vein, positioned just right of the midline and anterior to the vertebral column, begins at the junction of the right ascending lumbar and subcostal veins, terminating in the superior vena cava. This vein drains blood from the right side of the thoracic wall, thoracic viscera, and posterior abdominal wall.
The...
The azygos vein, positioned just right of the midline and anterior to the vertebral column, begins at the junction of the right ascending lumbar and subcostal veins, terminating in the superior vena cava. This vein drains blood from the right side of the thoracic wall, thoracic viscera, and posterior abdominal wall.
The...
2.1K
01:15Veins of Lower Limbs
2.6K
The human body consists of an intricate network of veins responsible for the crucial task of blood drainage from the lower limbs. These veins can be categorized into two main types: deep veins and superficial veins.
Formed by the union of the medial and lateral plantar veins, the posterior tibial vein, rising through the calf muscle, assimilates the fibular vein. The anterior tibial vein, a superior extension of the foot's dorsalis pedis vein, merges with the posterior tibial vein at the...
Formed by the union of the medial and lateral plantar veins, the posterior tibial vein, rising through the calf muscle, assimilates the fibular vein. The anterior tibial vein, a superior extension of the foot's dorsalis pedis vein, merges with the posterior tibial vein at the...
2.6K
01:26Varicose Veins I: Introduction
226
Varicose veins, or varicosities, are abnormally dilated and twisted superficial veins caused by venous valve incompetence. This condition commonly affects the lower extremities, especially the saphenous veins, due to the higher pressure from prolonged standing and walking. However, varicosities can also occur in other areas, such as the esophagus, vulva, spermatic cords, and anorectal region.Etiology and typesPrimary varicose veins, often idiopathic, are more common in women due to inherent...
226