Rad to Rad Learning: Rapid Gastric Emptying

A dark blue background with various hexagonal shapes and lines clustered on the left side, representing rad to rad learning, gradually fading into open space on the right.

The Radiology Partners (RP) NMMI Radiology National Subspecialty Division (NSD) presents our newest Rad to Rad Learning case. 

 


Peer Learning Opportunitymegaphone icon

Rapid gastric emptying and gastroparesis can both present with similar clinical symptoms. Gastric emptying examinations can definitively distinguish between the two etiologies.

 1 hour: 24% retention (normal: 30-90%)

This graph displays the change in gastric activity over time at hourly intervals.

A graph showing gastric emptying over 120 minutes with raw and linear fit lines, and a dashed line for 50% emptying. The x-axis is time in minutes; the y-axis is counts per minute. Text below states Decay Corrected by Xeleris: Yes..

 

Nuclear medicine scan showing anterior and posterior views with highlighted regions labeled ANT MEDLINE, ANT HR, ANT 3HR, POST MEDLINE, POST HR, and POST 3HR in blue outlines.


Practical Insights duplicate icon

    • Seen frequently in patients post gastric surgery, vagotomy, and early diabetes.
    • Diagnostic criteria: <30% retention at 60 minutes.
    • This diagnostic criteria only applies to the standard solid-phase meal, and a combination of anterior and posterior imaging.
    • This examination can be terminated at the 1 hour time point if <30% retention is seen at 60 minutes.

Bell iconTakeaway: Obtaining a detailed patient history is key to an accurate diagnosis.

Shared to improve patient safety and healthcare delivery in the provision of radiology services. The circumstances and facts are changed, altered, or deidentified to preserve confidentiality. Privileges have not been waived.The NMMI Radiology National Subspecialty Division (NSD) is part of RP’s Clinical Value Team, whichworks to elevate patient care and enhance value through innovation, collaboration and education. To advance this goal, our radiologists and advanced practice providers are committed to sharing peer learning as valuable reminders and insights about what we encounter in our day-to-day practiceCheck back here and on XLinkedIn and Instagram to see these common cases and our findings.

Visit the Clinical Resources page for more cases and to see what we’ve developed to enhance best practice recommendations, elevate image quality and patient care and update current standards throughout RP’s network of practices, all to deliver excellent radiology services to patients, referring clinicians and client partners.

Radiology Partners, through RP Clinical Services and its managed practices, together with Mosaic Clinical Technologies, Inc., its technology and AI division, is the leading provider of technology-enabled radiology services in the U.S., serving more than 3,400 hospitals and other healthcare facilities with high-quality radiology, technology and artificial intelligence solutions. As a physician-led and physician-owned practice, our mission is to transform radiology by innovating across clinical value, technology, and service, while elevating the role of radiology and radiologists in healthcare. For the latest news from RP, follow us on XLinkedInInstagramYouTube and the blog.




Rad to Rad Learning: Wernicke Encephalopathy

A dark blue background with various hexagonal shapes and lines clustered on the left side, representing rad to rad learning, gradually fading into open space on the right.

The Radiology Partners (RP) Neuroradiology National Subspecialty Division (NSD) presents our newest Rad to Rad Learning case.

 


Peer Learning Opportunitymegaphone icon

Up to 80% of patients with this condition suffer severe memory loss (Korsakoff syndrome) and it has a 10-20% mortality rate if untreated.

Wernicke Encephalopathy

Look for symmetric T2 hyperintensity in the medial thalami, hypothalami, mammilary bodies, and periaqueductal grey matter.

MRI scan showing 3 different views of a patient's brain.Shared to improve patient safety and healthcare delivery in the provision of radiology services. The circumstances and facts are changed, altered, or deidentified to preserve confidentiality. Privileges have not been waived.


Practical Insights duplicate icon

    • The classic triad of ataxia, oculomotor abnormalities and confusion is present in the majority of patients.

    • Over 20% of thiamine deficiencies occur in nonalcoholics with malnutrition, malabsorption, prolonged vomiting, cancer, or AIDS.

    • MRI is normal in 40% of cases.

    • Thiamine supplementation is a cheap and effective treatment.


Bell iconClassic imaging appearance should trigger thiamine supplementation due to low-risk and high clinical impact.

The Neuroradiology National Subspecialty Division (NSD) is part of RP’s Clinical Value Team, whichworks to elevate patient care and enhance value through innovation, collaboration and education. To advance this goal, our radiologists and advanced practice providers are committed to sharing peer learning as valuable reminders and insights about what we encounter in our day-to-day practiceCheck back here and on XLinkedIn and Instagram to see these common cases and our findings.

Visit the Clinical Resources page for more cases and to see what we’ve developed to enhance best practice recommendations, elevate image quality and patient care and update current standards throughout RP’s network of practices, all to deliver excellent radiology services to patients, referring clinicians and client partners.

Radiology Partners, through its owned and affiliated practices, is a leading physician-led and physician-owned technology-enabled radiology practice in the U.S. For the latest news from RP, follow us on XLinkedInInstagramYouTube and the blog.




Rad to Rad Learning: Solid Pulmonary Nodules on FDG PET/CT

A dark blue background with various hexagonal shapes and lines clustered on the left side, representing rad to rad learning, gradually fading into open space on the right.

The Radiology Partners (RP) NMMI Radiology National Subspecialty Division (NSD) presents our newest Rad to Rad Learning case.

 


Peer Learning Opportunitymegaphone icon

Low-level FDG uptake in a solid pulmonary nodule does not exclude malignancy.

Solid Pulmonary Nodules on FDG PET/CT

2018 study – Below threshold SUV. SUV max 2.2

Low-level FDG uptake in a solid pulmonary nodule does not exclude malignancy. 2018 study - “below threshold SUV”

2020 study – Biopsy-proven adenocarcinoma. SUV max 5.4

2020 study- Biopsy-proved adenocarcinoma. SUV Max 5.4Shared to improve patient safety and healthcare delivery in the provision of radiology services. The circumstances and facts are changed, altered, or deidentified to preserve confidentiality. Privileges have not been waived.


Practical Insights duplicate icon

    • Historically, SUV > 2.5 has been shown to have higher positive predictive value for malignancy.

    • However, SUV <2.5 is not definitively benign.

    • Nodule morphology and change over time are as important as SUV.

    • If low FDG activity, recommend follow-up CT as a minimum


Bell iconNo SUV threshold reliably differentiates malignant from benign solid nodules.

The NMMI Radiology National Subspecialty Division (NSD) is part of RP’s Clinical Value Team, whichworks to elevate patient care and enhance value through innovation, collaboration and education. To advance this goal, our radiologists and advanced practice providers are committed to sharing peer learning as valuable reminders and insights about what we encounter in our day-to-day practiceCheck back here and on XLinkedIn and Instagram to see these common cases and our findings.

Visit the Clinical Resources page for more cases and to see what we’ve developed to enhance best practice recommendations, elevate image quality and patient care and update current standards throughout RP’s network of practices, all to deliver excellent radiology services to patients, referring clinicians and client partners.

Radiology Partners, through its owned and affiliated practices, is a leading physician-led and physician-owned technology-enabled radiology practice in the U.S. For the latest news from RP, follow us on XLinkedInInstagramYouTube and the blog.




Rad to Rad Learning: Subsolid Pulmonary Nodules on FDG PET/CT

A dark blue background with various hexagonal shapes and lines clustered on the left side, representing rad to rad learning, gradually fading into open space on the right.

The Radiology Partners (RP) NMMI Radiology National Subspecialty Division (NSD) presents our newest Rad to Rad Learning case.

 


Peer Learning Opportunitymegaphone icon

Low-level FDG uptake in a subsolid pulmonary nodule does not exclude malignancy.

Subsolid Pulmonary Nodules on FDG PET/CT

Feb 12, 2024 SUV max 2.1

Low-level FDG uptake in a subsolid pulmonary nodule does not exclude malignancy.

July 25, 2025. SUV max 8.2

Subsolid Pulmonary Nodules on FDG PET/CTShared to improve patient safety and healthcare delivery in the provision of radiology services. The circumstances and facts are changed, altered, or deidentified to preserve confidentiality. Privileges have not been waived.


Practical Insights duplicate icon

    • There are no relevant threshold values when evaluating subsolid nodules.

    • Changes in nodule morphology over time may be as or more important than SUV max.

    • For subsolid nodules with low SUV max, follow-up CT is recommended, unless the nodule is enlarging over time.


Bell iconSubsolid nodules with low-level FDG uptake can be malignant.

The NMMI Radiology National Subspecialty Division (NSD) is part of RP’s Clinical Value Team, whichworks to elevate patient care and enhance value through innovation, collaboration and education. To advance this goal, our radiologists and advanced practice providers are committed to sharing peer learning as valuable reminders and insights about what we encounter in our day-to-day practiceCheck back here and on XLinkedIn and Instagram to see these common cases and our findings.

Visit the Clinical Resources page for more cases and to see what we’ve developed to enhance best practice recommendations, elevate image quality and patient care and update current standards throughout RP’s network of practices, all to deliver excellent radiology services to patients, referring clinicians and client partners.

Radiology Partners, through its owned and affiliated practices, is a leading physician-led and physician-owned technology-enabled radiology practice in the U.S. For the latest news from RP, follow us on XLinkedInInstagramYouTube and the blog.




Rad to Rad Learning: Two Common Coalitions

A dark blue background with various hexagonal shapes and lines clustered on the left side, representing rad to rad learning, gradually fading into open space on the right.

The Radiology Partners (RP) Musculoskeletal Radiology National Subspecialty Division (NSD) presents two of our newest Rad to Rad Learning cases.

Dr. Krishna Nallamshetty

Dr. Krishna Nallamshetty

The MSK NSD is part of RP’s Clinical Value Team, whichworks to elevate patient care and enhance value through innovation, collaboration and education. To advance this goal, our radiologists and advanced practice providers are committed to sharing peer learning as valuable reminders and insights about what we encounter in our day-to-day practice.

Check back here and on XLinkedIn and Instagram to see these common cases and our findings.Visit the Clinical Resources page for more cases and to see what we’ve developed to enhance best practice recommendations, elevate image quality and patient care and update current standards throughout RP’s network of practices, all to deliver excellent radiology services to patients, referring clinicians and client partners.

Radiology Partners, through its owned and affiliated practices, is a leading physician-led and physician-owned radiology practice in the U.S. For the latest news from RP, follow us on XLinkedInInstagramYouTube and the blog.Shared to improve patient safety and healthcare delivery in the provision of radiology services. The circumstances and facts are changed, altered, or deidentified to preserve confidentiality. Privileges have not been waived.




Rad to Rad Learning: False Positive GI Bleed

A dark blue background with various hexagonal shapes and lines clustered on the left side, representing rad to rad learning, gradually fading into open space on the right.

The Radiology Partners (RP) Nuclear Medicine and Molecular Imaging (NMMI) National Subspecialty Division (NSD) presents our newest Rad to Rad Learning case.

Dr. Krishna Nallamshetty

Dr. Krishna Nallamshetty

The NMMI NSD is part of RP’s Clinical Value Team, whichworks to elevate patient care and enhance value through innovation, collaboration and education. To advance this goal, our radiologists and advanced practice providers are committed to sharing peer learning as valuable reminders and insights about what we encounter in our day-to-day practice.

Check back here and on XLinkedIn and Instagram to see these common cases and our findings.Visit the Clinical Resources page for more cases and to see what we’ve developed to enhance best practice recommendations, elevate image quality and patient care and update current standards throughout RP’s network of practices, all to deliver excellent radiology services to patients, referring clinicians and client partners.

Radiology Partners, through its owned and affiliated practices, is a leading physician-led and physician-owned radiology practice in the U.S. For the latest news from RP, follow us on XLinkedInInstagramYouTube and the blog.Shared to improve patient safety and healthcare delivery in the provision of radiology services. The circumstances and facts are changed, altered, or deidentified to preserve confidentiality. Privileges have not been waived.




Rad to Rad Learning: HIDA – Nonexcreting Liver

A dark blue background with various hexagonal shapes and lines clustered on the left side, representing rad to rad learning, gradually fading into open space on the right.

The Radiology Partners (RP) Nuclear Medicine and Molecular Imaging (NMMI) Radiology National Subspecialty Division (NSD) presents our newest Rad to Rad Learning case.

Dr. Krishna Nallamshetty

Dr. Krishna Nallamshetty

The NMMI NSD is part of RP’s Clinical Value Team, which works to elevate patient care and enhance value through innovation, collaboration and education. To advance this goal, our radiologists and advanced practice providers are committed to sharing peer learning as valuable reminders and insights about what we encounter in our day-to-day practice.

Check back here and on XLinkedIn and Instagram to see these common cases and our findings.Visit the Clinical Resources page for more cases and to see what we’ve developed to enhance best practice recommendations, elevate image quality and patient care and update current standards throughout RP’s network of practices, all to deliver excellent radiology services to patients, referring clinicians and client partners.

Radiology Partners, through its owned and affiliated practices, is a leading physician-led and physician-owned radiology practice in the U.S. For the latest news from RP, follow us on XLinkedInInstagramYouTube and the blog.Shared to improve patient safety and healthcare delivery in the provision of radiology services. The circumstances and facts are changed, altered, or deidentified to preserve confidentiality. Privileges have not been waived.