Ashwin Singh Parihar, MBBS, MD

It was an honor to present the 14th Annual Martin P. Sandler Lecture in Nuclear Medicine and Molecular Imaging @VUMCradiology A short 🧵about the fun and fulfilling trip from @MIRimaging and meeting some amazing and supremely accomplished folks!

AI-generated “deepfake” X-ray images can be difficult to distinguish from authentic images, even for experienced radiologists and advanced multimodal AI models, according to a new study published in @radiology_rsna. Read the full story: bit.ly/4sYTtGG #MedicalImaging #ArtificialIntelligence #AIinHealthCare

It was a fantastic experience working with you @Mike_tordjman and the entire team. So glad to see this published! Congratulations all :)

🚨 A new episode of the @radiology_rsna podcast is now available! 🚨 @TheNUCguy talks with @swoo_rad & Dr. Alberto Vargas about how PSMA PET scoring systems are shaping prostate cancer imaging and why standardization matters for patient care. bit.ly/3QZQRsC

>10 years ago, @allaf_mo, @somjavadi, @michael_gorin, and I started on a quest to use sestamibi for renal mass characterization. I'm proud that we produced the following story: (TL;DR: it works!) pubmed.ncbi.nlm.nih.gov/41433425/. @AlirezaAmin10 @liljasolnes @nirmishsingla @gottsled

@P_DeepakIBDMD @HelmsleyTrust @WashUMedGastro @WashUDeptMed @satishev @EmoryPediatrics @CoulterBME @DrAilsaHart @philtozer1 @ibdseb @jalpa_devi @GI_JeffMD @IBD_JohnD @AmerGastroAssn @AmCollegeGastro @CrohnsColitisFn @drvishal82 Congratulations!! @P_DeepakIBDMD and @DavidBallardMD

Delighted to share that the @HelmsleyTrust has awarded a $3.2 million grant to the three of us: myself @WashUMedGastro @WashUDeptMed, Satish Viswanath, PhD @satishev, an associate professor in the Departments of Pediatrics & Biomedical Engineering @EmoryPediatrics @CoulterBME & David H. Ballard, MD @DavidBallardMD @WashUMedMIR. The project will validate: 👉Newly developed radiologic definitions for fistula improvement and response through the TOpCLASS fistula consortium. cghjournal.org/article/S1542-… 👉 Fully automated fistula segmentation neural network model on routine pelvic MRIs. spiedigitallibrary.org/conference-pro… 👉Further, using advanced computational approaches and artificial intelligence (deep learning) methods, the grant would allow the development of novel radiomics tools to measure fistula response that can be eventually deployed in clinical practice and trials in perianal Crohn’s disease drug development and surgical care pathways.

A new episode of the @radiology_rsna podcast is now available! 🚨 @TheNUCguy talks with Dr. Gary Ulaner about how FDG PET-CT improves detection of oligometastatic breast cancer and its impact on patient care. bit.ly/3QZQRsC

(3/3) Elliot Fishman, MD, FACR (@ctisus) Nina Kottler, MD (@RadKottler) Kira Melamud, MD Tanya Moseley, MD, FACR Ashwin Singh Parihar, MD, MBBS (@TheNUCguy) Benjamin H Taragin, MD, FACR Vani Vijayakumar, MD, FACR Scientific Paper of the Year: Casey Pelzl, MPH

@WashUMedMIR @ParisaMazaheri @WashUAcadEd Congratulations!! @ParisaMazaheri

Congrats to Assistant Prof. @ParisaMazaheri, MD, on her @WashUAcadEd induction! She joins a community of fellow academic educators at #WashUMed who aim to push the boundaries of health science and medicine education in new, engaging and innovative ways.

2. We’ll sift through and toss your best brain-benders to the authors themselves—and feature them on our Radiology podcast! So, what sample-size conundrum has kept you up… or made you throw your calculator out the window?

1. Drop your wiliest, quirkiest or most practically puzzling sample-size questions below! (“What’s the deal with power vs precision vs budget when your sample cost per scan might bankrupt a small country?”🤣)

But here’s the twist: We want you to ask them. That’s right—your burning Qs could be turning heads on our Radiology podcast. 🔥🎙 Here’s how to play:

Sample Size Estimation: Ten Frequently Unanswered Questions — just landed in Radiology! (August 2025) @TheNUCguy bit.ly/3KsAsLZ

Ever find yourself tangled in the math when trying to decide how many cases you actually need for your imaging study? 😅 You're not alone—Moradi & Eng tackle 10 real-world brain-twisters that keep researchers up at night. @TheNUCguy

AIF lower extremity CTA can be a challenging, time-consuming radiology study to interpret. Our @RadioGraphics work offers practical guidance on anatomy, CTA technique, radiologic interpretation, and pitfalls. pubs.rsna.org/doi/10.1148/rg… @WashUMedMIR #AIF

@raghava_kashyap @JournalofNucMed Congratulations @raghava_kashyap very timely article!

A simple metric on early (6week) post therapy imaging has a strong impact on patients with mCRPC receiving LuPSMA therapy. Glad to share our recent publication in @JournalofNucMed jnm.snmjournals.org/content/early/…

@WashUMedMIR @ShinjiniKundu @TheASNR This is amazing. - Congratulations!! @ShinjiniKundu

Congrats to Assistant Prof. @ShinjiniKundu, MD, PhD, who received a Foundation of @TheASNR grant to advance clinical #neurorad care. The funds will support her work investigating neural pathways in genetically mediated autism using generative machine learning. #MIRresearch

🚨 A new sponsored episode of the @radiology_rsna podcast is now available! 🚨@TheNUCguy speaks with Dr. Petrice Cogswell about radiologists' role in imaging advancements for #AlzheimerDisease and how innovation drives progress in healthcare systems bit.ly/3QZQRsC

ICYMI: This week’s sponsored episode of the @radiology_rsna podcast dives into imaging innovation for #AlzheimerDisease. @TheNUCguy chats with Dr. Petrice Cogswell about the evolving role of radiologists and what’s ahead for healthcare systems. bit.ly/3GNy1Ss

Saturday mornings are for catching up on great convos ☕🎙️ Tune in as @TheNUCguy chats with Dr. Jelijn Knip and @MenkeWillemien about FES-PET vs FDG-PET in staging ER-positive breast cancer. Don’t miss it! #RadOnc #BreastImaging #Radiology

Coming up: @TheNUCguy will cover three select FDA approved, receptor-based PET radiopharmaceuticals currently in clinical use for imaging of neuroendocrine, breast, & prostate malignancies. Plus, he'll provide an overview of their biodistribution, imaging interpretation, and common pitfalls! bit.ly/4gbW0r9