Video from RSNA 2018: What do we know about gadolinium deposition?

Nov 26, 2018

New findings are coming out on almost a weekly basis about trace elements of gadolinium left in human tissue after scans with MRI contrast agents. What do we know about this phenomenon, and how serious is it? We talk to Dr. Robert McDonald, PhD, of the Mayo Clinic in Rochester, MN.

Video Interview 2018 RSNA

Representative longitudinal chest CT images and five-year parametric response mapping (PRM), pulmonary vascular CT reconstructions, and hyperpolarized xenon-129 (Xe-129) ventilation MRI scans from survivors of nonsevere and severe COVID-19 pneumonia. (A–F) Images in a 68-year-old male survivor of nonsevere COVID-19 pneumonia, (G–L) 62-year-old male survivor of severe COVID-19 pneumonia, and (M–R) 55-year-old male survivor of severe COVID-19 pneumonia. For each participant, the first three columns show coronal chest CT images from the acute phase (A, G, M), two-year follow-up (B, H, N), and five-year follow-up (C, I, O) (left to right). The fourth column (D, J, P) shows a coronal PRM image for each participant at five-year follow-up derived from paired inspiratory and expiratory CT scans, showing the spatial distribution of lung functional categories. Green indicates normal lung tissue, yellow indicates functional small airway disease, and red indicates emphysema. The second-to-last column shows volume-rendered small pulmonary vessel visualization (red) at five-year follow-up per participant (E, K, Q). The column on the far right (F, L, R) shows a hyperpolarized Xe-129 MRI ventilation defect percentage (VDP) map at five-year follow-up per participant. Dark blue represents high Xe-129 signal intensity, corresponding to well-ventilated lung regions, whereas red represents no Xe-129 signal intensity, corresponding to ventilation defects. At five-year follow-up, the 68-year-old survivor of nonsevere COVID-19 pneumonia (top row) showed near-complete radiologic resolution, no respiratory symptoms, and preserved pulmonary function. In contrast, the 62-year-old survivor of severe COVID-19 pneumonia (middle row) showed persistent fibrotic linear opacities without respiratory symptoms and mildly reduced pulmonary function. The 55-year-old survivor of severe COVID-19 pneumonia (bottom row) showed persistent scattered fibrotic linear opacities and focal emphysematous changes in both lungs, with dyspnea and impaired gas exchange function. The VDP values obtained from F, L, and R were 7.7%, 7.1%, and 6.3%, respectively.

What are the effects of COVID-19 pneumonia after 5 years?

September 24, 2026

Representative MRI scans for which the independently assigned imaging-derived extranodal extension (iENE) grades differed among the readers. (A) Axial and sagittal images in a 56-year-old male patient with nasopharyngeal carcinoma and cervical nodal metastases. Readers 1 and 3 interpreted the finding as a metastatic lymph node invading the left sternocleidomastoid muscle (arrow) and assessed an iENE grade of 3, whereas reader 2 assigned a grade of 2. After joint review, the radiologists reached a consensus on the absence of definite sternocleidomastoid muscle invasion, and the final iENE grade was 2. (B) Axial and sagittal images in a 52-year-old male patient with nasopharyngeal carcinoma and cervical nodal metastases. Reader 1 interpreted the findings as a single enlarged metastatic lymph node and assessed an iENE grade of 1, whereas readers 2 and 3 interpreted them as two coalescent metastatic lymph nodes (arrows) and assessed a grade of 2. After joint review, the radiologists reached a consensus on the coalescence of the two metastatic lymph nodes, and the final iENE grade was 2.

Image-based grading system estimates nasopharyngeal carcinoma severity

September 23, 2026

Echelon Synergy 1.5T MRI with MotionClear Comprehensive Motion Correction Suite

Echelon Synergy 1.5T MRI with MotionClear Comprehensive Motion Correction Suite

August 11, 2026

Ex-NFL QB Matt Hasselback points brain imaging study

September 21, 2026

What are the effects of COVID-19 pneumonia after 5 years?

After five years, residual lesions persisted in 35.6% of survivors (37 of 104).

September 24, 2026

Representative longitudinal chest CT images and five-year parametric response mapping (PRM), pulmonary vascular CT reconstructions, and hyperpolarized xenon-129 (Xe-129) ventilation MRI scans from survivors of nonsevere and severe COVID-19 pneumonia. (A–F) Images in a 68-year-old male survivor of nonsevere COVID-19 pneumonia, (G–L) 62-year-old male survivor of severe COVID-19 pneumonia, and (M–R) 55-year-old male survivor of severe COVID-19 pneumonia. For each participant, the first three columns show coronal chest CT images from the acute phase (A, G, M), two-year follow-up (B, H, N), and five-year follow-up (C, I, O) (left to right). The fourth column (D, J, P) shows a coronal PRM image for each participant at five-year follow-up derived from paired inspiratory and expiratory CT scans, showing the spatial distribution of lung functional categories. Green indicates normal lung tissue, yellow indicates functional small airway disease, and red indicates emphysema. The second-to-last column shows volume-rendered small pulmonary vessel visualization (red) at five-year follow-up per participant (E, K, Q). The column on the far right (F, L, R) shows a hyperpolarized Xe-129 MRI ventilation defect percentage (VDP) map at five-year follow-up per participant. Dark blue represents high Xe-129 signal intensity, corresponding to well-ventilated lung regions, whereas red represents no Xe-129 signal intensity, corresponding to ventilation defects. At five-year follow-up, the 68-year-old survivor of nonsevere COVID-19 pneumonia (top row) showed near-complete radiologic resolution, no respiratory symptoms, and preserved pulmonary function. In contrast, the 62-year-old survivor of severe COVID-19 pneumonia (middle row) showed persistent fibrotic linear opacities without respiratory symptoms and mildly reduced pulmonary function. The 55-year-old survivor of severe COVID-19 pneumonia (bottom row) showed persistent scattered fibrotic linear opacities and focal emphysematous changes in both lungs, with dyspnea and impaired gas exchange function. The VDP values obtained from F, L, and R were 7.7%, 7.1%, and 6.3%, respectively.

Image-based grading system estimates nasopharyngeal carcinoma severity

By Amerigo Allegretto

The four-tier grading system showed excellent reliability and good prognostic value for patients with nasopharyngeal carcinoma.

September 23, 2026

Representative MRI scans for which the independently assigned imaging-derived extranodal extension (iENE) grades differed among the readers. (A) Axial and sagittal images in a 56-year-old male patient with nasopharyngeal carcinoma and cervical nodal metastases. Readers 1 and 3 interpreted the finding as a metastatic lymph node invading the left sternocleidomastoid muscle (arrow) and assessed an iENE grade of 3, whereas reader 2 assigned a grade of 2. After joint review, the radiologists reached a consensus on the absence of definite sternocleidomastoid muscle invasion, and the final iENE grade was 2. (B) Axial and sagittal images in a 52-year-old male patient with nasopharyngeal carcinoma and cervical nodal metastases. Reader 1 interpreted the findings as a single enlarged metastatic lymph node and assessed an iENE grade of 1, whereas readers 2 and 3 interpreted them as two coalescent metastatic lymph nodes (arrows) and assessed a grade of 2. After joint review, the radiologists reached a consensus on the coalescence of the two metastatic lymph nodes, and the final iENE grade was 2.

Podcast: OSHA report reveals more about 2023 MRI accident

By Amerigo Allegretto

MRI experts dive into Cal/OSHA's report on a 2023 MRI accident in which a nurse was pinned between an ICU bed and an MRI scanner.

September 22, 2026

The Invisible Force Podcast Album Cover

Ex-NFL QB Matt Hasselback points brain imaging study

The trial’s main goal it to establish methods for diagnosing chronic traumatic encephalopathy (CTE) in the living, rather that by postmortem exams.

September 21, 2026

LLM on par with head-and-neck subspecialists in analyzing MRI reports

By Amerigo Allegretto

GPT-5-Thinking yields similar diagnostic accuracy compared to subspecialists focusing on orbital and head-and-neck MRI.

September 16, 2026

Mri Brain Head 400

DeVry, Pulse Radiology Institute launch MRI technology degree

By AuntMinnie.com staff writers

The degree combines DeVry's online coursework with Pulse Radiology Institute's clinical training model and partner network.

September 15, 2026

Student Doctor Laptop Test 400

Brains age faster among residents in disadvantaged neighborhoods

By Amerigo Allegretto

MRI data show that living in disadvantaged neighborhoods is tied to adverse brain health.

September 15, 2026

National and state neighborhood-level disadvantage rankings of the study patients. (A) National disadvantage rankings are shown. Left: area deprivation scores mapped onto the state of Wisconsin, where the study sample resides, with national ranking deciles shown. Blue indicates less disadvantaged neighborhoods, whereas red indicates more disadvantaged neighborhoods. Right: histogram quantifying the number of patients in each Area Deprivation Index (ADI) decile. (B) Same as A, but state ranking deciles are shown. The distributions of both the national and state-level ADI rankings of the patients were skewed toward less disadvantaged neighborhoods. Maps were obtained from reference 36.

Standardized care coordination may reduce inpatient MRI safety events

By Amerigo Allegretto

Care level guidelines can improve coordination between MRI technologists and inpatient care teams.

September 14, 2026

Mri Woman Sleeping Adobe Neat Design Studio

MRI reveals brain patterns as music reduces stress

By Amerigo Allegretto

MRI shows changes in communication between brain structures when people listen to music after completing a stressful task.

September 8, 2026

Podcast: MRI safety experts shed light on wishy-washy leadership

Tobias "Toby" Gilk and John Posh return with a new episode of The Invisible Force podcast series.

September 8, 2026

The Invisible Force Podcast Album Cover Auntminnie Jan 2026 Thumbnails

MRI-based model shows changes over time in multiple myeloma patients

By Amerigo Allegretto

Whole-body MRI could serve as a scalable biomarker for risk stratification in multiple myeloma patients.

September 4, 2026

Multiple Myeloma 400

Heartvue.ai gets FDA nod for cardiac MRI analysis software

By AuntMinnie.com staff writers

The platform allows for viewing, post-processing, and quantitative evaluation of cardiovascular MR images.

September 3, 2026

Page 1 of 650