Kyle Cooper

Associate Director of IR and IR/DR Residency Program Director, Loma Linda University (#irad), cat 1 cyclist, husband and father of two. My tweets are my own.

[Harjit Singh @hsinghIR]

A GREAT Deep Dive Cholangioscopy workshop #SIRTOR2026 Huge thanks to coordinators—@medravi @AhsunR @alexvezeridis @johnsmirnMD for their leadership. Highly informative with valuable insights from @josephmiller @billbrowne @KyleCooperMD @radtrivedi @AdamFang13 @NNezami1 SIR2027!

[Kyle Cooper @KyleCooperMD]

@AustinBourgeois @SDhandMD @t_intheleadcoat @keithppereira @TheRealDoctorOs @_backtable @ChengaziMD @DonGarbettMD @DaveJohnsonMD @Samarth_IRadoc @Doc_Rock_MD Gold.

[choskiMD @ChoskiMD]

Diagnosis?

@SIR_ECS @SIRRFS

[Kyle Cooper @KyleCooperMD]

@ChoskiMD @SIR_ECS @SIRRFS Classic steal case! What were the patients symptoms?

[Sid Kulkarni, DO, MS @SidKulkarni3]

#SIR2026 with the Loma Linda crew @LLUMedCenter @KyleCooperMD

[Kyle Cooper @KyleCooperMD]

Honestly the best SIR I have ever had, with an absolutely awesome @LLUHealth IR crew to share the experience with. I am so lucky to have found my home with this hospital and this society. Best specialty in medicine!! @SIRspecialists @SIR_ECS @SIRRFS @LLUMedSchool @LLUHPhysicians

[Kyle Cooper @KyleCooperMD]

@MiamiVasc @SIRRFS @schiro_md @RajNarayanan67 @EllaRad_MD @moraron @Gina_Landinez_ @AGeronemus Can I come back and train with you guys for 5 years?

[Kyle Cooper @KyleCooperMD]

Here we go!!! #SIR26TOR @SIRspecialists

[Kyle Cooper @KyleCooperMD]

@ziegler_md Agree. One of my favorite books of all time, and the movie did it justice for sure.

[Kyle Cooper @KyleCooperMD]

@Aspirant_Riker @SaraZhaoIRad @SIRspecialists @SIRRFS @AnweshaDubey_XO @vellia_zhou @mghradchiefs The MCAT is a test for undergraduates to gauge readiness for medical school, you bigot troll. One of these four is already a doctor, and the other three are about to be.

[Kyle Cooper @KyleCooperMD]

Humbled that these awesome gentleman have entrusted their education to us @LLUMedCenter. Excited for them to start!

[Sid Kulkarni, DO, MS @SidKulkarni3]

Congratulations!!! Can’t wait to work with you all! #MatchDay #IRadRes @KyleCooperMD @LLUHealth

[Kyle Cooper @KyleCooperMD]

I learned an incredible amount from this man during his last year at @MiamiVasc. He loved the fellows and his patients. Many of my verbal rebukes for my trainees come verbatim from him. “Are you metaphysically certain of that?” 🤣 He died too young. RIP Shaun. #ISETWeek2026

[Kyle Cooper @KyleCooperMD]

Best job in the world! @SIRspecialists @SIRRFS #irad #WorldIRDay

[CIRSE @cirsesociety]

On Jan. 16, 1964, Dr. Dotter performed the first transluminal angioplasty, transforming medicine forever.
Today, we celebrate this and all other great IR accomplishments that have come since. Celebrate with us; share your IR success stories using #WorldIRday!

[Kyle Cooper @KyleCooperMD]

@ChengaziMD Not snarky enough imo

[Kyle Cooper @KyleCooperMD]

@Dr_Sudi @TheRealDoctorOs I’m sad that both of you left academics, honestly. I have thought about it myself but I enjoy the teaching more than anything else about my career or current job. You’re both great teachers.

[Kyle Cooper @KyleCooperMD]

@maninbsir @ChengaziMD @keithppereira @kmadass @SDhandMD @drvarshana @Naif_87 @_backtable @IR_Doctor @CHICKVIR @AustinBourgeois @IRKhalsa @laronecampbell @smbracewell @LessneVIR I used to do this, but I now start with 8mm and see if the gradient has dropped to less than 12mmHg or 50% of baseline. If neither threshold has been reached I will go to 10mm. Thoughts on this step-wise approach?

[Kyle Cooper @KyleCooperMD]

@ChengaziMD @Naif_87 @keithppereira @kmadass @SDhandMD @drvarshana @_backtable @IR_Doctor @CHICKVIR @AustinBourgeois @IRKhalsa @laronecampbell @smbracewell @LessneVIR As mentioned by the other commenter, in theory it should continue to open to 8 over time if you do that.

[Kyle Cooper @KyleCooperMD]

@Naif_87 @ChengaziMD @keithppereira @kmadass @SDhandMD @drvarshana @_backtable @IR_Doctor @CHICKVIR @AustinBourgeois @IRKhalsa @laronecampbell @smbracewell @LessneVIR In theory, yes it would, and this is why that particular paper has me scratching my head a bit. Although liver stiffness plays a role here of course, as it did with the old Viatorr and other SES used for TIPS if dilated less than than 10mm.

[Kyle Cooper @KyleCooperMD]

@Naif_87 @ChengaziMD @keithppereira @kmadass @SDhandMD @drvarshana @_backtable @IR_Doctor @CHICKVIR @AustinBourgeois @IRKhalsa @laronecampbell @smbracewell @LessneVIR This paper pre-dates modern Viatorr CX (Controlled Expansion) stents, which will not dilate past 8mm unless you balloon with a 9 or 10mm balloon.