Board-prep, core-curriculum, call-prep, and case-of-the-week material.
The b-value sets diffusion weighting in DWI MRI, changing sensitivity to water motion. Higher b-values increase diffusion sensitivity but lower SNR. Essential for DWI interpretation and radiology physics exams — part of a 100-question high-yield series.
The molybdenum-99/technetium-99m generator is a cornerstone of nuclear medicine, providing a continuous supply of Tc-99m for diagnostic imaging. This tutorial explains the Mo-99 decay chain, the column-based separation of Tc-99m, and why this system is central to daily clinical…
Video tutorial provides an introductory approach to shoulder MRI, covering anatomy, sequences, and a systematic search pattern. Features labelled anatomy and links to case-based pathology courses (CME available).
Radiologists are facing significant emotional challenges, including burnout, isolation, and patient-related distress, prompting calls for systemic wellness interventions, according to RSNA News.
A 49-year-old with left homonymous hemianopsia had an unremarkable non-contrast head CT. CT perfusion revealed right PCA territory penumbra (Tmax mismatch), and CTA confirmed a focal P1-P2 junction occlusion. Post-treatment MRI showed a small right hippocampal infarct.
Giant cell tumor of tendon sheath (tenosynovial giant cell tumor) is the 2nd most common hand/wrist mass. US shows a homogeneously hypoechoic lobulated mass near tendon, not moving with it, often with posterior acoustic enhancement.
Calcium Pyrophosphate Deposition Disease (CPPD) is a crystal arthropathy characterized by chondrocalcinosis on radiographs, commonly involving the knee, wrist, and pubic symphysis.
A new educational tutorial breaks down T1 and T2 MRI contrast: fluid is dark on T1 and bright on T2, fat is bright on T1 and dark on fat-suppressed sequences, forming the foundation of clinical image interpretation.
LearningRadiology post reviews imaging findings in diverticulosis and diverticulitis, helping radiologists distinguish uncomplicated disease from complications like abscess or perforation. Aimed at trainees and practicing radiologists.
The Radiology Assistant published an updated educational overview of non-meniscal knee pathology, covering ligaments, cartilage, and osseous structures for radiologists and trainees.
In a 100-question radiology MCQ test, Gemini 2.5 Pro achieved 90% accuracy, with Claude 4.5 Sonnet at 86%. All LLMs and 3rd-year residents outperformed juniors. No performance gap between Turkish and English (P=1.000). Claude showed best temporal reliability (κ=0.872).
Patient surveys reveal logistical, physical, and psychological burdens of imaging exams prevent completion of cancer screening. Pre-test anxiety and structural barriers like travel and cost were common. Targeted interventions that address these could improve adherence, especiall…
A Delphi consensus of international experts identified 7 essential domains and 36 topics for a standardized maternal point-of-care ultrasound (POCUS) curriculum, aiming to improve bedside diagnosis of cardiopulmonary and hemorrhagic complications in obstetrics.
A review highlights chest imaging findings of hantavirus cardiopulmonary syndrome—interstitial edema and pleural effusions—and outlines infection control steps for radiology departments.
The "dancing megasperm" sign—tiny moving echogenic foci in the epididymis on ultrasound—indicates epididymal obstruction, not just filariasis. Recognizing it prevents misdiagnosis.
CTisus hosts a live case conference for June 2026, walking through multiple unknown CT cases with expert commentary. Designed for radiologists and trainees, the session offers practical teaching points on body CT interpretation, differential diagnoses, and pearls for daily pract…
This lecture explains the ITMIG mediastinal classification, dividing the mediastinum into prevascular, visceral, and paravertebral compartments. It details the anatomical boundaries of each compartment and demonstrates how a compartment-based approach can narrow the differential…
New FFR-CT techniques enhance non-invasive detection of hemodynamically significant coronary stenosis, potentially reducing diagnostic catheterizations. Recent refinements include improved computational fluid dynamics and integration with photon-counting CT, though exact sensiti…
This CTisus educational video reviews CT detection and analysis of small bowel carcinoid tumors, covering imaging protocols and characteristic features to aid diagnosis.
A new educational lecture breaks down the complex anatomy of the deep neck spaces into suprahyoid and infrahyoid compartments, providing a clear radiological classification to help localize disease on head and neck imaging.
Complete ulnar styloid attachment tear of the TFCC leaves the bony footprint empty due to tendon retraction. Look for subchondral cyst formation and lunotriquetral ligament injury as secondary signs of instability.
Deep learning models clarify physiological signal from noise in lower extremity MR lymphangiography, potentially improving diagnostic assessment (specific quantitative metrics not available in the provided source).
Axial resolution in ultrasound is determined by spatial pulse length (SPL)—shorter SPL yields better separation of structures along the beam axis. SPL depends on wavelength and pulse duration; damping reduces ringing, shortening SPL. Essential for board exams and clinical optimi…
A short educational video presents a conceptual framework for interpreting head CT examinations, aimed at radiology residents.
A new educational review outlines a practical, step-by-step approach to interpreting high-resolution CT (HRCT) of the lungs, covering pattern recognition, distribution, and key disease categories for radiology trainees and general radiologists.
Free comprehensive video tutorial on knee MRI from Navigating Radiology, covering sequences, labeled anatomy, and a systematic approach to each structure. Includes case-based modules with AI hints and feedback to learn common pathologies.
On ultrasound, common bile duct (CBD) stones may lack posterior shadowing; use twinkling artifact and a dilated CBD (>6 mm, +1 mm per decade >60 years) as key clues. Seen in up to 15% of patients with gallstones, complications include cholangitis and pancreatitis.
This Navigating Radiology course teaches radiologists to identify commonly missed brain MRI findings—blind spots and nuanced anatomy—to avoid missing important incidental findings in daily practice.
Adnexal cystic mass with incomplete septations and 'beads-on-a-string' sign suggests chronic hydrosalpinx; pyosalpinx and tubo-ovarian abscess appear more complex with debris and thick walls. Most common cause: pelvic inflammatory disease.
LearningRadiology reviews the classic imaging features of Langerhans cell histiocytosis (eosinophilic granuloma), a focal form of LCH that typically presents as a solitary 'punched-out' lytic bone lesion without periosteal reaction in the skull or femur of a child, often mimicki…
