쉐도잉 연습: SVINutes: Collateral Circulation - 영상으로 영어 말하기 배우기

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Hi, I'm David Liebeskin speaking to you from the USC Neurovascular Institute, talking to you about collateral circulation.
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So collateral circulation we know has been important for hundreds of years in terms of blood flow in the brain
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and specifically with respect to ischemia or ischemic stroke, both in terms of different stages in terms of the onset of stroke, the likelihood that you're going to develop a stroke,
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as well as in terms of what happens once someone does have a stroke.
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Collaterals are important.
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These are these alternative blood flow channels that provide blood flow when the main artery is blocked to the brain, and it offsets the ischemic injury or the damage that is done.
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It is a compensatory mechanism where the brain actually is able
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to sustain itself against the lack of blood flow in that region of the brain.
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Collateral circulation is seen with a variety of different imaging methods, and this is where we've learned the most about collateral circulation from originally from angiography
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and in most recent decades from non-invasive imaging as well.
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So we see correlates of collateral circulation in terms of every type of imaging that we do.
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Indirect correlations, so not necessarily the direct collaterals themselves, but the collateral blood flow or perfusion,
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the collateral arterial roots or the connections or anastomosis that we call them, as well as the consequences in terms of what happens in terms of the amount of ischemic damage,
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as well as what can happen in terms of reperfusion injury and hemorrhage.
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So collaterals are important because they reflect the likelihood we're able to reperfuse the brain, to what extent, and the recovery after stroke as well.
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So grading collaterals is very important.
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We do this routinely as an imaging core lab, but it's done in routine practice on a daily basis from non-invasive as well as angiographic methods.
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Collateral circulation has been associated with different demographics, different patient status, comorbidities as well.
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And it is important to think about these things in terms of diagnosing patients, not just with stroke, but in terms of their collateral status and the likelihood that they're gonna rapidly progress or not.
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This is important because we can plan treatment based on that.
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We can plan how aggressive we need to be, or should be, in training that acute ischemic stroke with endovascular therapy or other alternative approaches.
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Increasingly, and in recent years, this is important in terms of neuroprotection or cytoprotection, where we try alternative methods of protecting the brain.
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Patients with poor collaterals may have a greater need for neuroprotection or cytoprotection, where the brain is not able to recover as well.
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So grading collaterals in terms of these indirect measures on imaging is important, whether with CT or MRI techniques. In sum,
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collaterals are very important in terms of how patients do from A to Z throughout the entire course of the disease.
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And it's very important to use the imaging
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that we have available on a daily basis to estimate what we can do from a therapeutic standpoint.
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Thank you.
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이 비디오로 스피킹 연습을 하는 이유

의학 용어를 다루는 이 비디오는 영어 발음 교정과 전문적인 표현 능력을 키우기에 이상적입니다. 실제 전문가가 사용하는 자연스러운 발화 패턴과 논리적인 구조를 통해, shadow speak 기술을 연습하면 복잡한 주제도 명확하게 전달하는 능력이 향상됩니다. 특히 뇌졸중 관련 의학 용어를 배우면서 전문 분야의 영어 표현력을 키울 수 있어, 유튜브 영어 공부의 효과를 극대화할 수 있습니다.

문맥 속 문법과 표현

  • "Collateral circulation we know has been important...": 주어 앞에 부가 정보를 넣는 구조로, 영어의 유연한 문장 구조를 이해할 수 있습니다. "we know"가 주어 "collateral circulation" 뒤에 위치해 정보를 강조합니다.
  • "It is a compensatory mechanism where the brain actually is able to...": "where"를 사용해 mechanism을 설명하는 관계절입니다. 전문 용어의 정의를 내릴 때 자주 사용되므로, shadowing site에서 연습하면 자연스럽게 사용할 수 있습니다.
  • "Collateral circulation has been associated with different demographics...": "associated with"는 인과 관계를 나타내는 중요한 표현입니다. 의학 논문이나 보고서에서 자주 등장하므로, 실제 의료 현장에서의 영어 사용 능력을 키우는 데 도움됩니다.

발음의 함정

  • "ischemia": /ɪˈskiːmiə/로 발음하며, "i"가 짧은 소리가 아니라 긴 "ee" 소리입니다. 발음 실수가 많으므로, shadow speak 연습 시 천천히 발음해 익히세요.
  • "anastomosis": /əˌnæstəˈmoʊsɪs/로, 중간의 "st"가 약간 묵음 처리되므로 주의해야 합니다. 의학 용어의 특성상 발음이 복잡하므로, 반복적인 듣기와 발음 연습이 필수입니다.
  • "reperfusion": /ˌriːpərˈfjuːʒn/로, "re-"가 강조되며 "perfusion" 부분은 "퍼퓨전"이 아니라 "퍼퓨전"으로 발음합니다. 유튜브 영어 공부 시 발음 가이드를 참고하면서 연습하세요.

이 영상의 문법

화자가 가장 많이 쓰는 문형을 영상 속 실제 표현과 함께 정리했습니다.

문형영상 속 표현
현재완료 have/has + 과거분사 — 과거의 일이 지금도 관련이 있을 때has been · we've learned · has been associated
수동태 be + 과거분사 — 누가 하는지보다 무슨 일이 일어나는지에 초점is blocked · is seen · has been associated

쉐도잉이란? 영어 실력을 빠르게 키우는 과학적 방법

쉐도잉(Shadowing)은 원래 전문 통역사 훈련을 위해 개발된 언어 학습 기법으로, 다언어 학자인 Dr. Alexander Arguelles에 의해 대중화된 방법입니다. 핵심 원리는 간단하지만 매우 강력합니다: 원어민의 영어를 들으면서 1~2초의 짧은 지연으로 즉시 소리 내어 따라 말하는 것——마치 '그림자(shadow)'처럼 화자를 따라가는 것입니다. 문법 공부나 수동적인 청취와 달리, 쉐도잉은 뇌와 입 근육이 동시에 실시간으로 영어를 처리하고 재현하도록 훈련합니다. 연구에 따르면 이 방법은 발음 정확도, 억양, 리듬, 연음, 청취력, 말하기 유창성을 크게 향상시킵니다. IELTS 스피킹 준비와 자연스러운 영어 소통을 원하는 분들에게 특히 효과적입니다.

섀도잉 방법: 단계별 전체 가이드 읽기 →