Advanced Imaging Modalities

Imaging technologies are the cornerstone in the diagnosis and staging of benign and malignant lesions in the liver and pancreas. Although the methods are partly competing, they often need to be used in a complementary way in order to obtain optimal results for decision making.
The introduction of new and refined non-invasive imaging technologies has lately led to a major progress in the diagnostic approach to diseases of the digestive system. For example, this is the case with echo-enhanced sonography: This technique is based on the property of microbubbles to resonate and emit harmonic waves in an ultrasound field. The initial method, defined as ‘second harmonic imaging’, was limited by the incapacity to separate the signals obtained from the bubbles and the tissue texture. This procedure has been replaced by the pulse inversion imaging technique which now gives a much better picture quality, allowing to depict the vascularization pattern of distinct lesions in the liver and pancreas. Similarly, the performance of other key imaging modalities such as CT-scan, magnetic resonance imaging, Doppler sonography and endosonography has been improved.
Clinicians seeking current information on modern imaging modalities for diagnosis, differentiation and staging of gastrointestinal diseases will find this publication very useful.

Contents

5 Editorial
Rickes, S.; Malfertheiner, P. (Magdeburg)

Review Articles

6 CT in the Differentiation of Pancreatic Neoplasms –
Progress Report
Gritzmann, N.; Macheiner, P.; Hollerweger, A.; Hübner, E.
(Salzburg)

18 ERCP and MRCP in the Differentiation of Pancreatic
Tumors
Hartmann, D.; Schilling, D.; Bassler, B. (Ludwigshafen);
Adamek, H.E. (Cologne); Layer, G.; Riemann, J.F. (Ludwigshafen)

26 Role of Endoscopic Ultrasound in the Diagnosis of
Patients with Solid Pancreatic Masses
Kahl, S.; Malfertheiner, P. (Magdeburg)

32 Echo-Enhanced Sonography – An Increasingly
Used Procedure for the Differentiation of Pancreatic
Tumours
Rickes, S.; Malfertheiner, P. (Magdeburg)

39 CT Scan and MRI in the Differentiation of Liver
Tumors
Hori, M.; Murakami, T.; Kim, T.; Tomoda, K.; Nakamura, H.
(Osaka)

56 Imaging of Infl ammatory Bowel Disease:
CT and MR
Zalis, M.; Singh, A.K. (Boston, Mass.)

63 Doppler Sonography in the Diagnosis of
Infl ammatory Bowel Disease
Di Sabatino, A.; Armellini, E.; Corazza, G.R. (Pavia)


Original Articles


67 Evaluation of Criteria for the Activity of Crohn’s
Disease by Power Doppler Sonography
Neye, H.; Voderholzer, W. (Berlin); Rickes, S. (Magdeburg);
Weber, J.; Wermke, W.; Lochs, H. (Berlin)

73 Differential Diagnosis of Focal Liver Lesions in
Signal-Enhanced Ultrasound Using BR 1,
a Second-Generation Ultrasound Signal Enhancer
Peschl, R.; Werle, A.; Mathis, G. (Hohenems)

81 Evaluation of Diagnostic Criteria for Liver
Metastases of Adenocarcinomas and
Neuroendocrine Tumours at Conventional
)
Ultrasound, Unenhanced Power Doppler
Sonography and Echo-Enhanced Ultrasound
Rickes, S.; Ocran, K.W.; Gerstenhauer, G.; Neye, H.;
Wermke, W. (Berlin)

87 A Community-Based Epidemiologic Study on Gallstone Disease among Type 2 Diabetics in
Kinmen, Taiwan
Liu, C.-M.; Tung, T.-H.; Liu, J.-H.; Chou, P. (Taipei)
Clinical Images

92 Spoke-Like Vascular Pattern – A Characteristic Sign
of Focal Nodular Hyperplasias in the Liver
Rickes, S.; Schütte, K.; Ebert, M.; Malfertheiner, P. (Magdeburg)

94 Author Index/Subject Index

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