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However, a recent study of Moriwaki and al [1] found ultrasound was 85% sensitive and 100% specific for detection of free air in a prospective study of 484 patients. Some small studies have also investigated the utility of ultrasound contrast agents to detect active bleeding [2]. Ultrasound is relatively sensitive for free abdominal fluid. In a study, continuous scanning of Morison’s pouch during infusion of DPL fluid revealed a mean detection limit of 619 mL. Only 10% of ultrasonographers (attending physicians and residents in emergency medicine, radiology, and surgery) detected volumes less than 400 mL | CURRENT ISSUES AND RECENT ADVANCES IN PACEMAKER THERAPY Edited by Attila Roka INTECHOPEN.COM Current Issues and Recent Advances in Pacemaker Therapy http dx.doi.org 10.5772 2618 Edited by Attila Roka Contributors Majid Haghjoo Bela Merkely Levente Molnar Attila Roka D. Bastian K. Fessele Federico Guerra Michela Brambatti Maria Vittoria Matassini Alessandro Capucci Jeffrey L. Williams Robert T. Stevenson Michele Rossi Giuseppe Musolino Giuseppe Filiberto Serraino Attilio Renzulli Sanjay Kumar Haidar Yassin Opesanmi Esan Adam S. Budzikowski John T. Kassotis Spyridon Koulouris Sofia Metaxa Baris Bugan Charles L. Webber Jr. Ching-Sung Wang Teng-Wei Wang Jorge F. Velazco Shekhar Ghamande Salim Surani Published by InTech Janeza Trdine 9 51000 Rijeka Croatia Copyright 2012 InTech All chapters are Open Access distributed under the Creative Commons Attribution 3.0 license which allows users to download copy and build upon published articles even for commercial purposes as long as the author and publisher are properly credited which ensures maximum dissemination and a wider impact of our publications. After this work has been published by InTech authors have the right to republish it in whole or part in any publication of which they are the author and to make other personal use of the work. Any republication referencing or personal use of the work must explicitly identify the original source. Notice Statements and opinions expressed in the chapters are these of the individual contributors and not necessarily those of the editors or publisher. No responsibility is accepted for the accuracy of information contained in the published chapters. The publisher assumes no responsibility for any damage or injury to persons or property arising out of the use of any materials instructions methods or ideas contained in the book. Publishing Process Manager Martina Durovic Typesetting InTech Prepress Novi Sad Cover InTech Design Team First published August 2012 Printed in Croatia A free .
