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NMR findings in patients after wrist trauma with a negative plain radiographs.

Markuszewski M, Kraus A, Studniarek M, Zawadzka A - Pol J Radiol (2012)

Bottom Line: Substantial agreement between independent observers was found (kappa=0.63).Fair agreement was found between X-ray and NMR studies (kappa=0.37) due to different diagnostic information received in both methods.Simplified NMR imaging of the wrist proved to be strongly efficient in the detection of pathological changes in injured wrists.

View Article: PubMed Central - PubMed

Affiliation: Department of Neonatal and Genitourinary Radiology of the Medical University of Gdańsk, Gdańsk, Poland.

ABSTRACT

Background: The purpose was to assess the prevalence and location of the injuries of the carpal bones and soft tissue of the wrist on NMR in patients with negative radiographs.

Material/methods: A total of 89 patients (9-81years) were consecutively examined after wrist trauma. Radiograms were performed in four projections: AP, PA, oblique and lateral. In 63 cases of negative radiographs and persistent clinical problem, simplified NMR (T1,T2, STIR; in coronal plane) was conducted with a 1.5 Tesla magnet. Results were evaluated by two independent observers. A positive X-ray result was stated when at least one observer suggested bone fracture. The MR images were viewed for detection of possible bone fracture, bone edema and soft tissue injuries. Cohen's kappa coefficient was calculated to assess the quality of chosen criteria by means of agreement between both observers and both methods.

Results: As many as 26 X-ray studies were classified as positive. Substantial agreement between independent observers was found (kappa=0.63). In 17 cases out of 63 with two negative wrist radiogram, the NMR result was positive (19%). The most frequently fractured or injured bone was scaphoid (10 cases) and distal radius (5 cases). Fair agreement was found between X-ray and NMR studies (kappa=0.37) due to different diagnostic information received in both methods.

Conclusions: Simplified NMR imaging of the wrist proved to be strongly efficient in the detection of pathological changes in injured wrists.

No MeSH data available.


Related in: MedlinePlus

A 12-year-old boy, negative posttraumatic standard radiograph, PA position.
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f3A-poljradiol-77-2-7: A 12-year-old boy, negative posttraumatic standard radiograph, PA position.

Mentions: In two patients we diagnosed scapholunate ligament disruption and damage to the triangular fibrocartilage complex (TFCC) in one subject (Figure 3A–D).


NMR findings in patients after wrist trauma with a negative plain radiographs.

Markuszewski M, Kraus A, Studniarek M, Zawadzka A - Pol J Radiol (2012)

A 12-year-old boy, negative posttraumatic standard radiograph, PA position.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3403806&req=5

f3A-poljradiol-77-2-7: A 12-year-old boy, negative posttraumatic standard radiograph, PA position.
Mentions: In two patients we diagnosed scapholunate ligament disruption and damage to the triangular fibrocartilage complex (TFCC) in one subject (Figure 3A–D).

Bottom Line: Substantial agreement between independent observers was found (kappa=0.63).Fair agreement was found between X-ray and NMR studies (kappa=0.37) due to different diagnostic information received in both methods.Simplified NMR imaging of the wrist proved to be strongly efficient in the detection of pathological changes in injured wrists.

View Article: PubMed Central - PubMed

Affiliation: Department of Neonatal and Genitourinary Radiology of the Medical University of Gdańsk, Gdańsk, Poland.

ABSTRACT

Background: The purpose was to assess the prevalence and location of the injuries of the carpal bones and soft tissue of the wrist on NMR in patients with negative radiographs.

Material/methods: A total of 89 patients (9-81years) were consecutively examined after wrist trauma. Radiograms were performed in four projections: AP, PA, oblique and lateral. In 63 cases of negative radiographs and persistent clinical problem, simplified NMR (T1,T2, STIR; in coronal plane) was conducted with a 1.5 Tesla magnet. Results were evaluated by two independent observers. A positive X-ray result was stated when at least one observer suggested bone fracture. The MR images were viewed for detection of possible bone fracture, bone edema and soft tissue injuries. Cohen's kappa coefficient was calculated to assess the quality of chosen criteria by means of agreement between both observers and both methods.

Results: As many as 26 X-ray studies were classified as positive. Substantial agreement between independent observers was found (kappa=0.63). In 17 cases out of 63 with two negative wrist radiogram, the NMR result was positive (19%). The most frequently fractured or injured bone was scaphoid (10 cases) and distal radius (5 cases). Fair agreement was found between X-ray and NMR studies (kappa=0.37) due to different diagnostic information received in both methods.

Conclusions: Simplified NMR imaging of the wrist proved to be strongly efficient in the detection of pathological changes in injured wrists.

No MeSH data available.


Related in: MedlinePlus