Multislice Helical CT of Focal and Diffuse Lung Disease
Comprehensive Diagnosis with Reconstruction of Contiguous and High-Resolution CT Sections from a Single Thin-Collimation Scan
U. Joseph Schoepf1,
Roland D. Bruening1,
Cheng Hong1,
Roger Eibel1,
Sibel Aydemir2,
Alexander Crispin2,
Christoph Becker1 and
Maximilian F. Reiser1
1
Department of Clinical Radiology, University of Munich, Klinikum Grosshadern,
Marchioninistr. 15, 81377 Munich, Germany.
2
Department of Medical Informatics, Biometry and Epidemiology, University of
Munich, Klinikum Grosshadern, 81377 Munich, Germany.
View larger version (86K):
[in a new window]
|
Fig. 1A. —36-year-old woman with sarcoidosis. Note mediastinal
lymphadenopathy (arrow, A and C) and parenchymal
changes with nodular pattern. Single, breath-held multislice helical CT
acquisition is reconstructed with 5-mm slices and soft-tissue kernel.
|
|
View larger version (100K):
[in a new window]
|
Fig. 1B. —36-year-old woman with sarcoidosis. Note mediastinal
lymphadenopathy (arrow, A and C) and parenchymal
changes with nodular pattern. High-resolution CT sections (1.25-mm
reconstruction) from same multislice helical CT acquisition as A allow
detailed evaluation of parenchymal involvement.
|
|
View larger version (90K):
[in a new window]
|
Fig. 1C. —36-year-old woman with sarcoidosis. Note mediastinal
lymphadenopathy (arrow, A and C) and parenchymal
changes with nodular pattern. Contrast-enhanced single-slice helical CT
acquisition reconstructed with soft-tissue kernel.
|
|
View larger version (108K):
[in a new window]
|
Fig. 1D. —36-year-old woman with sarcoidosis. Note mediastinal
lymphadenopathy (arrow, A and C) and parenchymal
changes with nodular pattern. Additional high-resolution CT scan obtained for
comprehensive diagnosis shows parenchymal involvement similar to B.
|
|
View larger version (94K):
[in a new window]
|
Fig. 2A. —45-year-old severely dyspneic woman with
lymphangioleiomyomatosis before lung transplantation. Comprehensive assessment
with single breath-held 1-mm multislice helical CT acquisition includes soft
tissue reconstruction (A), 5-mm lung reconstruction (B), and
1.25-mm high-resolution CT reconstruction (C) from same raw data set as
A and B.
|
|
View larger version (113K):
[in a new window]
|
Fig. 2B. —45-year-old severely dyspneic woman with
lymphangioleiomyomatosis before lung transplantation. Comprehensive assessment
with single breath-held 1-mm multislice helical CT acquisition includes soft
tissue reconstruction (A), 5-mm lung reconstruction (B), and
1.25-mm high-resolution CT reconstruction (C) from same raw data set as
A and B.
|
|
View larger version (134K):
[in a new window]
|
Fig. 2C. —45-year-old severely dyspneic woman with
lymphangioleiomyomatosis before lung transplantation. Comprehensive assessment
with single breath-held 1-mm multislice helical CT acquisition includes soft
tissue reconstruction (A), 5-mm lung reconstruction (B), and
1.25-mm high-resolution CT reconstruction (C) from same raw data set as
A and B.
|
|
View larger version (156K):
[in a new window]
|
Fig. 2D. —45-year-old severely dyspneic woman with
lymphangioleiomyomatosis before lung transplantation. Multiplanar CT
reformation in coronal plane of same data set as A and B. As a
result of 1-mm collimation, all voxels in data set are of roughly equal
dimensions in x-, y-, and z-axes. This isotropic
data set can be rearranged in coronal plane with similar image quality as in
axial source images.
|
|
View larger version (74K):
[in a new window]
|
Fig. 3A. —35-year-old woman with severe lymphangioleiomyomatosis and
pneumothorax of left lung before lung transplantation. Helical CT scan (5-mm
collimation) with soft tissue reconstruction obtained for assessment of
pulmonary and mediastinal structures before lung transplantation.
|
|
View larger version (84K):
[in a new window]
|
Fig. 3B. —35-year-old woman with severe lymphangioleiomyomatosis and
pneumothorax of left lung before lung transplantation. Helical CT scan (5-mm
collimation) with lung reconstruction.
|
|
View larger version (105K):
[in a new window]
|
Fig. 3C. —35-year-old woman with severe lymphangioleiomyomatosis and
pneumothorax of left lung before lung transplantation. Axial high-resolution
CT sections (1-mm collimation) allow detailed assessment of cystic lung
changes.
|
|
View larger version (109K):
[in a new window]
|
Fig. 4C. —43-year-old woman with Kartagener's syndrome. Multiplanar
reconstructions in coronal plane of dorsal (C) and ventral (D)
lung parenchyma show bronchiectases with typical signet-ring appearance
(arrow, D). Residual pneumonic changes can be assessed with
similar accuracy as in axial source images.
|
|
View larger version (86K):
[in a new window]
|
Fig. 4D. —43-year-old woman with Kartagener's syndrome. Multiplanar
reconstructions in coronal plane of dorsal (C) and ventral (D)
lung parenchyma show bronchiectases with typical signet-ring appearance
(arrow, D). Residual pneumonic changes can be assessed with
similar accuracy as in axial source images.
|
|
View larger version (114K):
[in a new window]
|
Fig. 4A. —43-year-old woman with Kartagener's syndrome. Multislice
helical CT scan (1-mm collimation) reveals true inversed situs with severe
cardiac dilatation due to atrial septal defect with Eisenmenger's
physiology.
|
|
View larger version (96K):
[in a new window]
|
Fig. 4B. —43-year-old woman with Kartagener's syndrome. CT scan of lung
sections (1.25-mm collimation) from same data set as A reveals
bronchiectasis in left upper lobe and residual pneumonic changes in atypically
segmented left lower lobe.
|
|
CiteULike 
Complore 
Connotea 
Del.icio.us 
Digg 
Reddit 
Technorati What's this?
Copyright © 2001 by the American Roentgen Ray Society.
