Lea Alhilali, MD Profile picture
Jun 14, 2022 10 tweets 6 min read Read on X
1/Like a bad piano player in a run down bar--I take requests! By popular demand, a🧵on how I make those illustrations for my #tweetorials--all in #PowerPoint!
This one shows how to create shadow & highlights to give a 3D effect
#medtwitter #MedEd #FOAMed #powerpointpresentation Image
2/Let's use this french fry illustration I used for my varices🧵
I use the curve function to create shapes. It has the most control for drawing--the freeform function causes uneven lines.
After drawing the shape, I use the shape fill function to fill it in it w/the color I need Image
3/ 3D effects begin w/the gradient fill. I use the gradient fill that powerpoint offers for my selected color--it knows how to chose them so that the gradient is smooth Image
4/ Now to get more advanced w/focal shadows. Using the curve function, I draw shapes where I want shadows. Then I fill these in using the eyedropper function on the Shape Fill menu. I touch the eyedropper to the darkest part of the gradient to fill them in w/a nice dark shadow. Image
5/ Now these shapes need to be blurred so they look more like shadows. I select them and go to the "Shape Effects" menu & select "Soft Edges." I⬆️the size of the soft edge until they look like good shadows. It is different for every shape, but usually you need at least 5 point Image
6/Now for highlights. I use the curve function to draw shapes where I want highlights. Similar to shadows, I use the eyedropper function to fill in the shapes--but instead of putting the eyedropper on the darkest part of the gradient, I put it in the lightest part of the gradient Image
7/However, for highlights, the lightest part of the gradient isn't light enough. So I select the shape, go to shape fill color & select "More colors." This brings up a box where you can lighten the shade of that color--the same way light would lighten it if it was shining on it. Image
8/Now it is time to blur these highlights the same way we blurred the shadows--using the soft edges function, increasing the soft edge until you get desired look of your highlight. Image
9/Now we add details. First, I drew the McDonalds logo using the curve function. Then I used the curve function to draw a single fry. I took that fry & copied & pasted it over &over again--each time rotating it & stretching it to make it look like there were many different fries Image
10/Voila! That is how you make a very professional illustration using only PPT & in only a few easy steps! Excited to see what you will create w/these new skills!
I post more of my tips for creating these illustrations in PPT--so if interested click to follow me @teachplaygrub Image

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More from @teachplaygrub

Jul 2
1/The medulla is anything but DULL!

Does seeing an infarct in the medulla cause your heart to skip a beat?

Does medullary anatomy send you into respiratory arrest?

Never fear, here is a thread on the major medullary syndromes! Image
2/The medulla is like a toll road.

Everything going down into the cord must pass through the medulla & everything from the cord going back up to the brain must too.

That’s a lot of tracts for a very small territory. Luckily you don’t need to know every tract Image
3/Medulla has 4 main vascular territories, spread out like a fan: anteromedial, anterolateral, lateral, and posterior.

You don’t need to remember their names, just the territory they cover—and I’ll show you how Image
Read 18 tweets
Jun 30
1/Time is brain! But what time is it?

If you don’t know the time of stroke onset, are you able to deduce it from imaging?

Here’s a thread to help you date a stroke on MRI! Image
2/Strokes evolve, or grow old, the same way people evolve or grow old.

The appearance of stroke on imaging mirrors the life stages of a person—you just have to change days for a stroke into years for a person

So 15 day old stroke has features of a 15 year old person, etc. Image
3/Initially (less than 4-6 hrs), the only finding is restriction (brightness) on diffusion imaging (DWI).

You can remember this bc in the first few months, a baby does nothing but be swaddled or restricted. So early/newly born stroke is like a baby, only restricted Image
Read 10 tweets
Jun 27
1/”I LOVE spinal cord syndromes!” is a phrase that has NEVER, EVER been said by anyone.

Do you become paralyzed when you see cord signal abnormality?

Never fear—here is a thread on all the incomplete spinal cord syndromes to get you moving again! Image
2/Spinal cord anatomy can be complex. On imaging, we can see the ant & post nerve roots. We can also see the gray & white matter. Hidden w/in the white matter, however, are numerous efferent & afferent tracts—enough to make your head spin. Image
3/Lucky for you, for the incomplete cord syndromes, all you need to know is gray matter & 3 main tracts. Anterolaterally, spinothalamic tract (pain & temp). Posteriorly, dorsal columns (vibration, proprioception, & light touch), & next to it, corticospinal tracts—providing motor Image
Read 20 tweets
Jun 23
1/Do you get a Broca’s aphasia trying remember the location of Broca's area?

Does trying to remember inferior frontal gyrus anatomy leave you speechless?

Don't be at a loss for words when it comes to Broca's area

Here’s a 🧵to help you remember the anatomy of this key region! Image
2/Anatomy of the inferior frontal gyrus (IFG) is best seen on the sagittal images, where it looks like the McDonald’s arches.

So, to find this area on MR, I open the sagittal images & scroll until I see the arches. When it comes to this method of finding the IFG, i’m lovin it. Image
3/Inferior frontal gyrus also looks like a sideways 3, if you prefer. This 3 is helpful bc the inferior frontal gyrus has 3 parts—called pars Image
Read 13 tweets
Jun 19
1/Feeling intoxicated trying to remember all the findings in alcohol use disorder?!

Here’s something to put you in high spirits!

This month’s @Radiographics has the important neuroimaging findings alcohol use disorder!



@cookyscan1 @RadG_editor #RGphx pubs.rsna.org/doi/10.1148/rg…Image
2/There’s an easy rhyme to help you remember the important neuroimaging findings of alcohol use disorder

“Basal ganglia is white...”

Get intrinsic T1 shortening in the BG that makes it look white as a ghost! Image
3/Next “...Cortex is bright”

Acute hyperammonemic encephalopathy cause cortical restricted diffusion, especially the insula, so that it looks as bright as a light bulb! Image
Read 8 tweets
Jun 9
1/Need help reading spine imaging? I’ve got your back!

It’s as easy as ABC!

A thread about an easy mnemonic you can use on every single spine study you see to increase your speed & make sure you never miss a thing! Image
2/A is for alignment

Look for:
(1) Unstable injuries

(2) Malalignment that causes early degenerative change. Abnormal motion causes spinal elements to abnormally move against each other, like grinding teeth wears down teeth—this wears down the spine Image
3/B is for bones.

On CT, the most important thing to look for w/bones is fractures. You may see focal bony lesions, but you may not

On MR, it is the opposite—you can see marrow lesions easily but you may or may not see edema associated w/fractures if the fracture is subtle Image
Read 11 tweets

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