靜脈曲張為什麼要做站立式超音波？
Why standing leg-vein ultrasound matters
中文版
腿上的青筋只是表面，真正的逆流可能從大腿、膝後或其他位置開始。站立式下肢靜脈超音波，可以把血流方向和問題血管找出來。
檢查不需要打針，也沒有輻射。醫師會在腿上移動探頭，必要時輕壓小腿，觀察血液怎麼流。
- 找出逆流從哪裡開始
- 確認深部與表淺靜脈狀況
- 幫助選擇雷射、醫療膠或其他治療
1.檢查會看到什麼？
- 血液是否往錯的方向回流。
- 逆流血管的位置、直徑與走向。
- 深部靜脈是否通暢。
- 過去治療後是否有殘存或新的逆流。
2.檢查前要準備嗎？
- 通常不需空腹。
- 穿方便露出大腿與小腿的衣物。
- 帶著你最想問的症狀與治療問題。
💡 只看外觀 vs 超音波評估
| 比較 | 只看腿上青筋 | 站立式超音波 |
|---|---|---|
| 能看到什麼 | 表面血管外觀 | 血流方向與深層來源 |
| 能否找逆流 | 不一定 | 可以定位與測量 |
| 治療規劃 | 容易只處理表面 | 可依血管地圖規劃 |
| 檢查感受 | 肉眼觀察 | 無輻射、通常不需打針 |
⚠️ 溫馨提醒：不是每一條小青筋都一定要做完整治療；是否需要檢查，會依症狀、外觀與你想處理的問題一起決定。
ENGLISH
Visible veins show only the surface. Reflux may begin in the thigh, behind the knee or elsewhere. Standing leg-vein ultrasound maps the source.
The test uses no radiation or injections. A probe moves over the leg while blood flow is observed.
- Locates the source of reflux
- Checks superficial and deep veins
- Guides laser, medical adhesive or other treatment
1.What does the test show?
- Whether blood flows in the wrong direction.
- The location, diameter and course of refluxing veins.
- Whether the deep veins are open.
- Residual or new reflux after previous treatment.
2.How should I prepare?
- Fasting is usually unnecessary.
- Wear clothing that allows the leg to be exposed.
- Bring your symptoms and treatment questions.
💡 Appearance alone versus ultrasound
| Comparison | Looking at the leg | Standing ultrasound |
|---|---|---|
| Information | Surface appearance | Blood direction and deeper source |
| Locate reflux | Not reliably | Yes |
| Treatment plan | May focus only on visible veins | Uses a venous map |
| Test experience | Visual inspection | No radiation or injection |
Note: Not every small vein needs a full study. The need depends on symptoms and treatment goals.
References
- Gloviczki P, et al. SVS/AVF/AVLS Guidelines Part I. J Vasc Surg Venous Lymphat Disord. 2023;11:231–261.e6. 查看來源
本文提供一般衛教，不取代個別診斷或治療。若有急性不舒服，請先就近就醫。
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