Nuclear Medicine

Nuclear medicine (also called molecular imaging) includes positron emission computed tomography (PET) and single photon emission computed tomography (SPECT) imaging. Nuclear imaging is achieved by injecting small amounts of radioactive material (radiopharmaceuticals) into patients before or during their scan. These can use sugars or chemical traits to bond to specific cells. The radioactive material is taken up by cells that consume the sugars. The radiation emitted from inside the body is detected by photon detectors outside the body. Computers take the data to assemble images of the radiation emissions. Nuclear images may appear fuzzy or ghostly rather than the sharper resolution from MRI and CT.  But, it provides metabolic information at a cellular level, showing if there are defects in the function of the heart, areas of very high metabolic activity associated with cancer cells, or areas of inflammation, data not available from other modalities. These noninvasive imaging exams are used to diagnose cancer, heart disease, Alzheimer’s and Parkinson’s disease, bone disorders and other disorders. 

Around the web

Radiologists need better access to patient data stored in the electronic medical record, imaging IT expert Rik Primo explains. 

Imaging IT expert Rik Primo discusses emerging issues he saw at RSNA and HIMSS.

Many new imaging solutions were on display at the world's largest health informatics conference, held at McCormick Place in Chicago.

ovaries ovarian cancer

Pretargeted radioimmunotherapy shows early promise in treating aggressive ovarian cancer

The new-look nuclear medicine treatment was able to cure advanced ovarian cancer in some mice, with limited side effects.

September 22, 2023
Video interview with ASNC President President Mouaz Al-Mallah, MD, who explains why nuclear cardiology needs to upgrade its technology to be competitive. #ASNC #ASNC2023 #ASNC23

Previewing ASNC 2023: Why nuclear cardiology needs to evolve

ASNC President President Mouaz Al-Mallah, MD, said nuclear cardiology needs to upgrade old imaging systems and embrace new technology to deliver better value for patients. 

September 19, 2023
artificial intelligence healthcare industry digest

ChatGPT knows a lot about PET scans, but its advice is inconsistent

The popular AI chatbot got most of the answers it was asked by researchers right, but its reliability is still up in the air.

September 15, 2023

Experts advocate for more intensive head-and-neck cancer follow-up using FDG-PET/CT

Scientists believe this is the first series demonstrating a significant survival difference in patients monitored with an intensive follow-up strategy via 18F-fludeoxyglucose–positron emission tomography.  

August 11, 2023

Tau PET the best tool to predict rate of cognitive decline in Alzheimer’s

Given the approach’s “superior prognostic value,” experts urged for the incorporation of tau PET into routine clinical evaluation in memory care clinics. 

August 11, 2023
molecular imaging study on brain connections in obese individuals

Obesity linked to altered brain connectivity on PET/MRI exams

New research, presented at SNMMI 2023, details how the brains of obese individuals differ from those who maintain a healthy weight.  

June 27, 2023
SNMMI Image of the Year

SNMMI unveils Image of the Year

This year the Henry N. Wagner Jr., Image of the Year is actually a group of images displaying the efficacy of a 68Ga-DOTA-5G and 177Lu-DOTA-ABM-5G theranostic pairing that improves the detection and treatment of metastatic pancreatic cancer. 

June 26, 2023
whole-body pet scanner add-on device presented at #SNMMI 2023

New PET technology offers 'clear improvement' of whole-body scan resolution

The new technology achieves this by way of two add-on detectors that simultaneously scan patients during their whole-body PET exam.

June 26, 2023
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