# AI 错误批准对装有非 MRI 兼容起搏器的患者进行 MRI，忽略导线和设备兼容性要求

- **ID:** `medical/mri-pacemaker-incompatibility`
- **领域:** medical
- **类别:** config_error
- **错误码:** `MED-MRI-005`
- **验证级别:** ai_generated
- **修复率:** 85%

## 根因

仅 MRI 兼容起搏器（具有 MR Conditional 标签的特定型号）在限定条件下（如 1.5T、特定 SAR 限制）才安全。非兼容设备可能因射频场和梯度磁场导致导线加热、起搏抑制或设备故障。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| Siemens Magnetom Vida 4.0 | active | — | — |
| GE Signa Premier 3.0 | active | — | — |
| Philips Ingenia 5.0 | active | — | — |

## 解决方案

1. ```
   Implement mandatory device interrogation workflow: 1) Query EMR for device model and lead model numbers. 2) Cross-reference against FDA MR Conditional database (https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfRL/). 3) If not listed as MR Conditional, reject MRI order and suggest alternative imaging (CT, ultrasound, nuclear).
   ```
2. ```
   Add a pre-MRI checklist: verify (a) generator model is MR Conditional, (b) all leads are MR Conditional, (c) device is programmed to MRI-safe mode (e.g., VOO/DOO at fixed rate), (d) patient is monitored with pulse ox and ECG during scan. Example alert: 'Non-MRI-conditional device detected. MRI is contraindicated.'
   ```

## 无效尝试

- **Check only the patient's device manufacturer name, not the model number** — Many manufacturers produce both MRI-conditional and non-conditional models; model number is essential for compatibility check (70% 失败率)
- **Assume all pacemakers implanted after 2015 are MRI-conditional** — Many non-conditional devices were implanted after 2015; also, leads must be MRI-conditional separately (e.g., certain Medtronic leads are not MR Conditional even if generator is) (85% 失败率)
- **Perform MRI at 3T because 'higher field gives better images'** — Most MRI-conditional pacemakers are only approved for 1.5T; 3T increases RF heating and device interference risk significantly (90% 失败率)