Nuclear MD

08/05/2026

07/31/2026

Created with the assistance of ChatGPT to simplify a complex topic into an educational visual.

07/25/2026

☢️🧬 Did You Know?

💉 A typical 200 mCi (7.4 GBq) dose of Lu-177 PSMA contains approximately 6.1 quadrillion (6.1 × 10¹⁵) radioactive lutetium atoms! 🤯

⏳ As Lu-177 decays (half-life: 6.65 days), every single Lu-177 atom transforms into one stable hafnium-177 (Hf-177) atom. ⚛️➡️🛡️

🔬 After complete decay, a 200 mCi treatment produces:
🧪 ~6.1 × 10¹⁵ Hf-177 atoms
⚖️ Yet this corresponds to only ~1.8 micrograms (0.0018 mg) of hafnium—less than two millionths of a gram! 🤏

✨ It’s one of the fascinating paradoxes of nuclear medicine: quadrillions of atoms 💥 deliver targeted radiation therapy, yet the actual amount of material is almost unimaginably small.

🌟 Tiny mass. Powerful science. Precision therapy.

☢️ 🧬 🔬 ⚛️ 🩻 🎗️

07/22/2026

🎯 Three principles for becoming an excellent Radiologist or Nuclear Medicine Physician:

📚 1. Read relentlessly – Practice makes perfect. The more cases you interpret, the better your pattern recognition becomes.

🧠 2. Study continuously – The eyes cannot see what the mind does not know. Build a strong knowledge base by reading, especially high-quality review articles such as those in Radiographics.

🔄 3. Close the loop – Follow your patients. Review pathology, surgical findings, clinical outcomes, and follow-up imaging. The best learning happens when you correlate your interpretation with the final diagnosis.

🌟 Remember: Read. Study. Follow up. Repeat. Excellence in radiology is built one case at a time.

07/18/2026

☢️ Nuclear Medicine Physics Challenge

The image shows an array of photomultiplier tubes—the “eyes” behind a conventional gamma camera.

What is the primary function of a photomultiplier tube?

A. Convert gamma rays directly into digital imagesB. Convert scintillation light into an amplified electrical signalC. Collimate incoming gamma raysD. Determine the energy of photons using lead septa

👇 Share your answer in the comments!

07/18/2026

🔬 PSMA PET: Transforming Prostate Cancer Imaging

PSMA PET is an advanced imaging examination that helps physicians detect prostate cancer throughout the body by targeting prostate-specific membrane antigen, a protein commonly expressed by prostate cancer cells.

It can provide clinically valuable information when:

• Determining whether prostate cancer has spread• Evaluating suspected recurrence after surgery or radiation therapy• Guiding decisions between local and systemic treatment• Assessing eligibility for PSMA-targeted radiopharmaceutical therapy, including lutetium-177 PSMA

Like every imaging test, PSMA PET has limitations. Some prostate cancers demonstrate little or no PSMA expression, while certain benign conditions and other malignancies may also show uptake. Results must therefore be interpreted within the complete clinical context.

This excellent JAMA Oncology Patient Page offers a clear, patient-friendly explanation of how PSMA PET works, when it is used, and what patients can expect.

Learn more: https://doi.org/10.1001/jamaoncol.2022.3531

07/18/2026

Injection Granulomas; Sinusitis; Page kidney:

https://youtu.be/5f7QBRoIvAk

www.nuclearmd.com

07/12/2026

Case Challenge: # 74

Test your skills by providing answers in comments. Come back to check the answer key in 24 -48h.

Get all the cases at: https://nuclearmd.com/courses

07/12/2026

https://youtu.be/5lECXT8Nj3E

www.nuclearmd.com

07/08/2026

https://www.auntminnie.com/clinical-news/molecular-imaging/article/15829230/petmri-can-reduce-the-need-for-biopsies-in-prostate-cancer

Prostate biopsies are associated with considerable morbidity, including pain, re**al bleeding, prostatitis, and urinary tract infections.