Cardiac Imaging   Left Atrial Fibrosis Assessed with Cardiac MRI in Patients with Paroxysmal and Those with Persistent Atrial Fibrillation   Focal left atrial fibrosis localized to the left inferior pulmonary vein antrum, the extent of left atrial fibrosis, and enlarged left atrial volume were independently associated with persistent atrial fibrillation at cardiac MRI.      Dong Kyu Lee, Jaemin Shim...Sung Ho Hwang

Editorial: Searching for the Key to Foreseeing Left Atrial Fibrosis in Atrial Fibrillation: Could This Be Simple and Reliable with MRI? Ana G. Almeida

Gastrointestinal Imaging   Follow-up of Incidentally Detected Pancreatic Cystic Neoplasms: Do Baseline MRI and CT Features Predict Cyst Growth?    Pancreatic cystic neoplasms 15–25 mm in size were most likely to show growth on follow-up images obtained with CT or MRI; however, very small lesions (<5 mm) showed no interval growth until at least 3 years after initial lesion detection with CT or MRI.       Pallavi Pandey, Ankur Pandey...Ihab R. Kamel

LI-RADS Version 2017 versus Version 2018: Diagnosis of Hepatocellular Carcinoma on Gadoxetate Disodium–enhanced MRI   Liver Imaging Reporting and Data System (LI-RADS) version 2018 with updated LR-5 criteria improves sensitivity for the diagnosis of small (10–19 mm) hepatocellular carcinomas on gadoxetate disodium–enhanced MRI compared with LI-RADS version 2017.       Sang Min Lee, Jeong Min Lee...Jeong Hee Yoon

Neuroradiology   Cross-sectional CT Assessment of the Extent of Injectate Spread at CT Fluoroscopy–guided Cervical Epidural Interlaminar Steroid Injections   Cranial spread of medication during cervical interlaminar epidural steroid injections is limited in its extent, particularly within the ventral epidural space and neuroforamen; therefore, injections more directly targeted to the pain generator will provide better delivery.       Timothy J. Amrhein, Erol Bozdogan...Peter G. Kranz

Reviews and Commentary

Review   Safety Considerations of 7-T MRI in Clinical Practice   This review outlines the safety risks and associated risk-avoidance strategies of clinical 7-T MRI.       Michael N. Hoff, Alexander McKinney IV...Emanuel Kanal

Images in Radiology   CADASIL with Large Intracranial Arterial Atherosclerotic Stenosis   Chen Zhang, Zaiqiang Zhang