Chemical-shift MRI of pulmonary hamartomas: initial experience using a modified technique to assess nodule fat.
OBJECTIVE
The aim of this study was to show the usefulness of chemical-shift MRI in the diagnosis of intranodular fat in seven patients with pulmonary hamartomas and indeterminate CT findings.


CONCLUSIONS
In the setting of chemical-shift MRI, the average nodule signal intensity index of pulmonary hamartomas was 45.3% (SD = 25.5%). The correlation between average nodule signal intensity and CT attenuation in Hounsfield units was -0.94. Chemical-shift MRI could be an important tool for the detection of fat in pulmonary hamartomas with inconclusive CT findings.
Chest Radiology Department, Santa Casa de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil. brunohochhegger@gmail.com
Bruno
B
Hochhegger
Edson
E
Marchiori
Daniela Quinto
DQ
dos Reis
Arthur Soares
AS
Souza
Luciana Soares
LS
Souza
Taua
T
Brum
Klaus L
KL
Irion
D000273:Adipose Tissue / Q000473:pathology*; D000368:Aged; D006222:Hamartoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008171:Lung Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D014057:Tomography, X-Ray Computed