- Email: [email protected]
High resolution computed tomography of the ethmoid and of the middle osteo-meatal unit. I. Radiographic anatomy in the coronal plane (In French)
138
CLINICAL IMAGING1992;16:138-143
ABSTRACTS-SUMMARIES
OF SELECTED JOURNAL ARTICLES
COMPARATIVE EVALUATION OF COMPU?ED TOMOGRAPHY AND MAGNETIC RESONANCE IMAGING (1.5 T) IN THE DEMONSTRATION OF BRAIN METASTASES (In Italian)
Golfieri R, Cherryman GR, Olliff JF, Husband JE. (Radiologia III, Policlinico S. Orsola, Via Massarenti 9, I-40138Bologna (BO), Italy). Radio1 Med 1991;82:27-34. Forty-four patients with small cell carcinoma of the bronchus underwent computed tomography (CT] and magnetic resonance (MR) studies of the brain to detect cerebral metastases. All patients were studied with contrast-enhanced CT scans, short (Tlweighted) and long (T2-weighted), spin-echo (SE) and FLASH 90” MR sequences. Gd-DTPA enhanced SE-T1 and FLASH 90” sequences were also obtained. A quantitative comparison of the results was carried out to assess the sensitivity of the different techniques in the detection of brain metastases according to lesion diameter. Metastases were identified in 19/44 patients (43%). All techniques detected the lesions >2 cm; of the metastases <2 cm, 63/124(51%)were detected only by Gd-DTPA SE-T1 and FLASH sequences and 11 more (9%) only by Gd-DTPA SE-T1 scans. All the lesions identified on enhanced CT scans or on TZweighted images were easily detected by GdDTPA scans. CT sensitivity was higher than that of precontrast SE-T1 and FLASH studies and only slightly lower than that of T2-weighted images. As for lesions <2 cm, Gd-DTPA Tl-weighted sequences had the highest detection rate (124 lesions) versus Gd-DTPA FLASH 90” scans (113lesions] and precontrast Tl-weighted scans (45lesions). When comparing Gd-DTPA SE-T1 and FLASH 90” sequences in the detection of lesions
Co., Inc. New York, NY 10010
HIGH RESOLUTION COMPUTED TOMOGRAPHY OF THE ETHMOID AND OF THE MIDDLE OSTEO-MEAT’AL UNIT. I. RADIOGRAPHIC ANATOMY IN THE CORONAL PLANE (In French)
Ferrie JC, Azais 0, Vandenmarcq
P, et al.
HIGH RESOLUTION COMPUTED TOMOGRAPHY OF THE ETHMOID AND OF THE MIDDLE OSTEO-MEATAL UNIT. II. RADIOGRAPHIC ANATOMY IN THE AXIAL PLANE: MORPHOLOGICAL VARIATIONS (In French)
(Department d’Imagerie Medicale, Hbpital JeanBernard, B.P. 577,La Milletrie, F-86021, Poitiers Cedex, France). J Radio1 1991;72:429-436; 477-488. In the first of these articles the authors present a detailed evaluation by computed tomography (CT) of the anatomy of the ethmoid and the middle osteomeatal hiatal area. The anatomical images were obtained by CT scans performed in the axial, coronal, and sagittal planes in a normal subject, and on 150 CT examinations performed in pathological cases. The normal anatomy of the ethmoid and of the middle meatal hiatus is demonstrated with several illustrations in which the anatomical details are clearly outlined. The second article offers a detailed presentation of the CT findings observed in several anatomical variations of the osteo-meatal unit. These articles are excellent detailed studies on CT of the anatomy of the paranasal sinuses and adjacent bony structures. Antonio
F. Govoni, MD
GLIOMATOSIS CEREBRI: THE DIAGNOSTIC POTENTIAL OF MRI (In German) Rodiek SO, Hufnagl M. Abteilung fur
Rontgendiagnostik, Stadt. Krankenhaus MunchenBogenhausen, Englschalkinger Strasse 77, D-8000 Miinchen 81, Germany). RoFo 1991;155:80-84. Gliomatosis cerebri is a rare tumor of neuroepithelial origin in middle-aged persons presented by deterioration of cognitive functions, psychomotor retardation, and cerebral convulsions. Magnetic resonance imaging (MRI) predominantly shows a bilateral and
CLINICAL IMAGING1992;16:138-143
ABSTRACTS-SUMMARIES
OF SELECTED JOURNAL ARTICLES
COMPARATIVE EVALUATION OF COMPU?ED TOMOGRAPHY AND MAGNETIC RESONANCE IMAGING (1.5 T) IN THE DEMONSTRATION OF BRAIN METASTASES (In Italian)
Golfieri R, Cherryman GR, Olliff JF, Husband JE. (Radiologia III, Policlinico S. Orsola, Via Massarenti 9, I-40138Bologna (BO), Italy). Radio1 Med 1991;82:27-34. Forty-four patients with small cell carcinoma of the bronchus underwent computed tomography (CT] and magnetic resonance (MR) studies of the brain to detect cerebral metastases. All patients were studied with contrast-enhanced CT scans, short (Tlweighted) and long (T2-weighted), spin-echo (SE) and FLASH 90” MR sequences. Gd-DTPA enhanced SE-T1 and FLASH 90” sequences were also obtained. A quantitative comparison of the results was carried out to assess the sensitivity of the different techniques in the detection of brain metastases according to lesion diameter. Metastases were identified in 19/44 patients (43%). All techniques detected the lesions >2 cm; of the metastases <2 cm, 63/124(51%)were detected only by Gd-DTPA SE-T1 and FLASH sequences and 11 more (9%) only by Gd-DTPA SE-T1 scans. All the lesions identified on enhanced CT scans or on TZweighted images were easily detected by GdDTPA scans. CT sensitivity was higher than that of precontrast SE-T1 and FLASH studies and only slightly lower than that of T2-weighted images. As for lesions <2 cm, Gd-DTPA Tl-weighted sequences had the highest detection rate (124 lesions) versus Gd-DTPA FLASH 90” scans (113lesions] and precontrast Tl-weighted scans (45lesions). When comparing Gd-DTPA SE-T1 and FLASH 90” sequences in the detection of lesions
Co., Inc. New York, NY 10010
HIGH RESOLUTION COMPUTED TOMOGRAPHY OF THE ETHMOID AND OF THE MIDDLE OSTEO-MEAT’AL UNIT. I. RADIOGRAPHIC ANATOMY IN THE CORONAL PLANE (In French)
Ferrie JC, Azais 0, Vandenmarcq
P, et al.
HIGH RESOLUTION COMPUTED TOMOGRAPHY OF THE ETHMOID AND OF THE MIDDLE OSTEO-MEATAL UNIT. II. RADIOGRAPHIC ANATOMY IN THE AXIAL PLANE: MORPHOLOGICAL VARIATIONS (In French)
(Department d’Imagerie Medicale, Hbpital JeanBernard, B.P. 577,La Milletrie, F-86021, Poitiers Cedex, France). J Radio1 1991;72:429-436; 477-488. In the first of these articles the authors present a detailed evaluation by computed tomography (CT) of the anatomy of the ethmoid and the middle osteomeatal hiatal area. The anatomical images were obtained by CT scans performed in the axial, coronal, and sagittal planes in a normal subject, and on 150 CT examinations performed in pathological cases. The normal anatomy of the ethmoid and of the middle meatal hiatus is demonstrated with several illustrations in which the anatomical details are clearly outlined. The second article offers a detailed presentation of the CT findings observed in several anatomical variations of the osteo-meatal unit. These articles are excellent detailed studies on CT of the anatomy of the paranasal sinuses and adjacent bony structures. Antonio
F. Govoni, MD
GLIOMATOSIS CEREBRI: THE DIAGNOSTIC POTENTIAL OF MRI (In German) Rodiek SO, Hufnagl M. Abteilung fur
Rontgendiagnostik, Stadt. Krankenhaus MunchenBogenhausen, Englschalkinger Strasse 77, D-8000 Miinchen 81, Germany). RoFo 1991;155:80-84. Gliomatosis cerebri is a rare tumor of neuroepithelial origin in middle-aged persons presented by deterioration of cognitive functions, psychomotor retardation, and cerebral convulsions. Magnetic resonance imaging (MRI) predominantly shows a bilateral and