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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 This procedure has been replaced by the pulse inversion imaging technique which now gives a much better picture quality, allowing to depict the vascularization pattern of distinct lesions in the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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