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Journal Club-High-resolution sonography of the rib: can fracture and metastasis be differentiated?

Paik SH, Chung MJ, Park JS, Goo JM, Im JG.Department of Radiology, Soonchunhyang University, Bucheon Hospital, Gyeonggido, Korea.

OBJECTIVE: Our aim was to evaluate whether high-resolution sonography can provide additional information concerning rib lesions compared with radiography or bone scintigraphy.
MATERIALS AND METHODS: Fifty-eight patients with high-uptake rib lesions seen on bone scintigraphy were selected. Radiography and rib high-resolution sonography were performed on these patients. High-resolution sonography was performed using a linear 5-12 MHz transducer. By means of clinical history, histopathologic examination, and follow-up observation, these patients were classified into rib fracture (n = 37), rib metastasis (n = 18), or unknown (n = 3) groups. High-resolution sonography images of the 55 proven cases were reviewed for the presence of five representative findings: cortical disruption, callus formation, cortical deformity, mass, or bone destruction. The frequencies of these findings were compared between the groups with fracture and metastasis.
RESULTS: Rib lesions were matched by bone scintigraphy and high-resolution sonography in 53 (96%) of 55 patients and by bone scintigraphy and plain radiography in 23 (42%) of 55 patients. High-resolution sonography revealed 17 (94%) of 18 patients with metastasis and 36 (97%) of 37 patients with rib fractures. Metastatic lesions were seen as mass formation (n = 13) and irregular bone destruction (n = 7) on high-resolution sonography. Fracture was seen as cortical disruption with or without hematoma (n = 17), callus formation (n = 9), or cortical deformity, such as angling or stepping (n = 12).
CONCLUSION: High-resolution sonography of the ribs is a useful method of characterizing rib lesions in patients who have hot-uptake lesions on bone scintigraphy.

AJR Am J Roentgenol. 2005 Mar;184(3):969-74
Journal Club-High-resolution sonography of the rib: can fracture and metastasis be differentiated? Reviewed by Sumer Sethi on Sunday, March 06, 2005 Rating: 5

1 comment:

Anonymous said...

I would have been glad if such a high-resolution sonography of the ribs had been used when my friend met with accident. Doctors couldn't characterize his rib lesions rightly, and now he still has defective ribs..

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