All included patients were imaged on the 3.0 T scanner system (Magnetom Verio, Siemens) with an eight‐channel phased‐array surface coil. An intravenous dose of gadodiamide (0.1 mmol/kg, Omniscan, GE Healthcare) was administered before the MRI using a power injector (rate of 2.5 mL/s). Then, 20 mL saline was injected to flush the remaining agents (rate of 2.5 mL/s). The scanning range is covered from the calva to the lower neck in the supine position.