MP: You asked me “why I need to look at patients. from multiple angles, isn’t that waste of energy?”
IM: Yes doc, it’s been bothering me, the math didn’t help me much.
MP: That’s why when I was visiting @SaguaroNPS & saw so many varieties of 🌵, it dawned on me how to tell

IM: Go ahead doc, how?
Don’t waste my time.
I have “X-rays to take places to go”

MP: Ok, look at the attached #Saguaro #Cactus

IM: Ok, I see it
MP: how many arms this giant cactus has?
IM: I see 5 arms
MP: Ok, now see attached set of 3 images taken from different directions
IM: Hey doc, r u trying to fool me. These have more arms?
MP: No, it is just that same plant is seen from 3 different directions
MP: That’s why, if you want to see anything inside a patient without cutting them. We ask you to take pictures from different directions & people like us reconstruct image.
IM: it makes so much sense doc, seeing the same plant from just 3 angles, I could count the total arms.
IM: Clever doc, not bad for a physicist to explain me with photos of #cactus plant. No wonder u guys are called “nerds”
MP: Why are u reminding me of my high school days
IM: I was just kidding doc. Thanks for explaining me in simple terms. Glad you visited @SaguaroNPS


• • •

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More from @mmahesh1

May 4
May 4th conversation

7 am: Surgical corridor: Medical Physicist walking by the O-arm resting place

O-arm: Doc, do you know what day it is?

MP: It’s 4th of May, why?

O-arm: Doc, remember when I came here, you used to call me, “R2-D2”. I loved it. It gave a me so pride among the other c-arms who can only operate in fluoroscopy mode.

MP: That’s true, I do remember calling you “R2-D2”. Do you know why?

O-arm: Why doc?

MP: You have dual capability, you “Radiate in 2 modes & Detect in 2 modes”, hence R2-D2. What I mean is you can operate as a fluoroscopy unit and also as CBCT.

O-arm: Thanks doc. I need to brag with my buddies. BTW, May the Force be with You!

Read 5 tweets
Apr 30
April: #National #Poetry Month

Conversations between a Medical Physicist (me) & CT scanner

~4pm: Overhead someone humming a rhyme

MP: Hey buddy, are you hearing the humming rhymes
Or is it just me hearing sound?

CT: No doc! You’re fine – U don’t need a brain scan yet!
CT continues:

Actually, it was me who was humming the rhyme

MP: What! That’s a nice rhyme you are humming – sounds so lovely.

CT: Well then, let me tell you the rest of it doc!

Round and round I go around
All day long and all night long
Others may quit
But I won’t quit.

CT: Continues

From going round and round!

Every time I go around
I peek in, by passing my x-rays
Then, I let my buddies generate
what’s inside

That’s why, I ain’t bored.

You may still ask,
at least once in a while,
“Don’t you get bored
To keep going round and round?”

Read 10 tweets
Apr 29
CT Patient positioning plays key role in radiation dose reduction - good article
"It is successful teamwork between technologists, radiologists & medical physicists that allows good image quality & dose reduction in imaging"

Miscentering affects dose & image quality
i. Effect on dose: 4 cm mag increases dose by 67%
vertical shifts impact organ dose, breast, skin, etc
ii. Effect on image quality: Miscentering of 2.1 cm increased image noise by 6%…

2/ Image
a. The tube should be positioned at the top of the gantry, rather than at the bottom, to avoid offsets below the isocenter
b. Both AP and lateral (LAT) topograms should be used with the lowest acceptable tube current & tube voltage settings

Read 6 tweets
Apr 29
Strategies to mitigate the despair & speak recovery:
1. Be a detective: You may never get a full explanation, but u need to find out (legitimately) whatever details u can about why ur application was rejected
2. Reassess ur institutional commitment:Will this disappointment be fatal-either to ur career or to ur feelings for institution?...will U be ok, if you remain an associate professor for the rest of ur academic life. If so reaffirm elements of ur job that U love & focus on them
3. Expand your spheres of influence: Maybe one reason your application failed was that U weren’t perceived as well known in Ur field. Time to become more active in Ur discipline's professional organizations. Networking if key.

Read 8 tweets
Apr 22
For weekend reading

The O-arm saga!

6 am: Surgical corridor: Medical Physicist stops by the O-arm resting place

Medical Physicist (MP): Hi buddy! I got a call from the surgeon telling me that you are not behaving properly.

O-arm: What are you talking about doc?

MP: Look here, this what I am talking – what is this black hole?

O-arm: About that – well why y’all treat me like a stepchild when compared to my buddy MDCT*?

MP: Why do you say that?

*MultiDetector Computed Tomography
O-arm: Doc, reason for that black hole is simple. No one does calibration on me routinely. I know everyday, techs do air-calibration for MDCT but not for me.

MP: So, it’s that simple – I thought you were misbehaving because someone broke your jaw. Remember, we fixed your jaw

Read 8 tweets
Feb 19
Mysore Onion Chutney (ಮೈಸೂರು ಈರುಳ್ಳಿ ಚಟ್ನಿ)
(Thanks to my wife for guidance & key tips)
A: 2 Big onions (vidala)
B: 1 garlic clove, piece of ginger
C: 2 spoons of Channa Dal
D: 5-6 Red Chillies
E: Curry Leaves (5-6)
E: ½ spoon of Tamarind

Mysore Onion Chutney (ಮೈಸೂರು ಈರುಳ್ಳಿ ಚಟ್ನಿ)
(Thanks to my wife for guidance & key tips)

F: ¼ spoon turmeric (yellow) powder
F: ½ spoon of Sugar/Jaggery
G: Season w Asafoetida (ಇಂಗು) & Salt to taste

Mysore Onion Chutney
1.Saute chana dal to light golden brown
2.Add garlic clove, ginger & curry leaves & saute
3.Separately saute cut onions till it turns translucent
4.Roast red chillies
5.Allow all to cool before grinding

Read 4 tweets

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