武汉同济医院通报“患者做核磁共振被遗忘6小时”：整改，医生停职

“关于” introduces the topic or subject of a description, and the following “的” connects it to a noun (often an abstract noun like 报告、情况等). This makes the whole phrase a nominalized topic for the main action.

“被” introduces the agent (sometimes omitted) that causes the action; it turns an active verb into a passive expression, emphasizing what happened to the subject.

Placing a time expression (e.g. “6小时”) after the verb shows how long the action lasted; it can appear even in passive sentences to describe the duration of the state.

“未经” means “without having undergone/received,” and “不得” expresses prohibition. Together they form a fixed structure meaning “without X, you must not Y,” often used in written rules.

Official announcements frequently follow the pattern “Subject + Verb + Object,” where the object can be a quoted event or summary. “通报” is a verb meaning “to report/announce,” often followed by quotations or summaries of the incident.