Name: 1.什麼是生物醫學工程？ (1. What Is Biomedical Engineering?)
Uploaded: 2021-01-14T04:29:02.000Z
Duration: 42 min 30 s
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Professor Mark Saltzman: This is a course,

程度副詞

a version of which I've taught almost every year for the last

twenty years and it evolves a little bit every year.

so hopefully you'll get some advantage from that experience.

But the idea is to try to present to you what's exciting

about Biomedical Engineering, the ways that one can take

science and mathematics and apply that to improve human

but we have three teaching fellows who are affiliated with

Yen Cu is back there, Yen raise your hand higher so

everyone can see. Yen worked on the course last

year and she's the senior of the teaching fellows that are

working on the course this year. Serge Kobsa is in the back and

I should mention that Yen is a PhD student in Biomedical

Engineering and Serge is an M.D./PhD student who's getting

The third teaching fellow couldn't make it today,

his name is Michael Look and I'll introduce him to you when

first lecture today, to try to answer these

questions. You might have already noticed

that I'm using the classes V2 server so the syllabus is there,

I'm going to go over the syllabus a little bit later,

The first reading is available online and I'll talk more about

the readings when I get to that portion of the lecture here.

I'm going to post PowerPoints for all the lectures,

hopefully at least the day before the lecture takes place,

so I posted this last night. Some students find that they

benefit from printing out the PowerPoints and they can just

take their notes along with the slides as I go and that's one

way to do it, but feel free to do it whatever

way works for you, but those should be available.

The questions I want to try to answer today are what is

Biomedical Engineering? So why would you be interested

in spending a semester learning about this subject?

I'll talk about who will benefit from the course and a

little bit about sort of the detailed subject matter that

we'll cover in the course of this semester.

To answer the question what is Biomedical Engineering,

we're going to spend time on that today and we'll spend time

on Thursday, and I want to approach it from

a couple of different angles. One is by just showing you

a series of pictures which you might recognize and talk about

why this is an example of Biomedical Engineering.

This is one picture that probably you all know what it is

when you see it, it's a familiar looking image.

It's something that probably we all have some personal

This is a chest x-ray that would be taken in your doctor's

office, for example, or a radiologist's office.

And it is a good example of Biomedical Engineering and that

it takes a physical principle, that is how do x-rays interact

with the tissues of your body, and it uses that physics,

that physical principle to develop a picture of what's

inside your body, so to look inside and see

things that you couldn't see without this device.

And you'll recognize some of the parts of the image,

you can see the ribcage here, the bones, you can see the

heart is this large bright object down here.

If your - have good eyesight from the distance that you're at

you can see the vessels leading out of the heart and into the

spaces within the ribcage. Physicians over the years

of having this instrument have learned how to be very

sophisticated about looking at these pictures and diagnosing

when something is wrong inside the chest,

Biomedical Engineering, one that is well integrated

into our society to the point that we've probably all got a

and where we understand the physical principles that allow

over the last two decades in particular, very sophisticated

about taking pictures inside the body allowing doctors to look

inside the body and predict things about our internal

physiology that they couldn't predict just by looking at us or

putting their hands on us. This image on the top here is

another example of an imaging technique, this is a Positron

and it's taken by using radionuclides and injecting them

interact with tissues in your body in a specific way and you

can where those radioactive chemicals go.

It allows us to look not just at the anatomy of what's going

but to look at the chemistry, the biochemistry of what's

happening inside a particular organ or tissue in your body.

In this case, these are pictures of the brain

and this has been an exceptionally important

technique in understanding how molecules like neurotransmitters

affect disease and how they change in certain disease states

another example of Biomedical Engineering, this advanced

Well this third picture you can't probably see too much

about but you probably recognize what it is, right?

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