[Combining diagnosis of IOFB and complications with multiple image-related methods].

OBJECTIVE

To evaluate the roles of diagnosing intraocular foreign body (IOFB) and their complications with CT, B-scan, X-ray film, MRI and UBM.

METHODS

Retrospective study of 103 clinic inpatient cases.

RESULTS

CT showing rate was 100% (103/103), CT scan could identify positions of high density IOFB, and define metal or non-metal. But for the size and shape of metal IOFB, the low density IOFB and complications of IOFB, the showing rate was lower. The total showing rate of B-scan for IOFB was 93.2%, but the discovering rates were only 68.7% and 66.7% for anterior segment and retrobulbar IOFB, but the showing rate was high to the vitreous opacity and retinal detachment caused by IOFB. X-ray film can clearly show the size and shape of the metal IOFB. MRI can show the low density IOFB and orbital FB. UBM has a good image for the low density and small IOFB at the anterior segment of globe.

CONCLUSION

In the diagnosis and localization of IOFB, CT can well identify the IOFBs and show their relation with globe wall. B-scan can show even more clearly the relation between IOFB and globe wall, and complications of IOFB. X-ray film can distinctly reveal the size and shape of metal IOFB. MRI is good at showing low density, non-magnetic IOFB. UBM is only used in small or low density IOFB at the anterior segment of globe. The combination of multiple image-related methods can provide the required information on diagnosis and surgery design of IOFB.