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  • 1
    Digitale Medien
    Digitale Medien
    Technique of ultrasound examination during laparoscopic cholecystectomy (1993)
    Springer
    Surgical endoscopy and other interventional techniques 7 (1993), S. 544-549 
    Details
    ISSN: 1432-2218
    Schlagwort(e): Intracorporeal ultrasonography ; Laparoscopic ultrasonography ; Ultrasound examination ; Ultrasound technique ; Laparoscopic cholecystectomy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Intracorporeal ultrasonography was used as a new method to examine the bile ducts during laparoscopic cholecystectomy. A prototype rigid 7.5-MHz ultrasound probe, 10 mm in diameter and 50 cm in length, was introduced during 25 laparoscopic cholecystectomies. A dual scanning technique was developed for complete examination of the bile duct. This entailed transverse scanning via the subxyphoid trocar and longitudinal scanning via the umbilical trocar. The intrahepatic ducts were also visualized by placing the probe on the liver surface. Color Doppler imaging was useful to quickly distinguish the duct from vascular structures. Laparoscopic ultrasonography clearly delineated the bile ducts in all operations except one. The time required for imaging was significantly shorter for ultrasonography than for cholangiography. Our preliminary experience demonstrates that a complete examination of the bile ducts can be performed with intracorporeal ultrasonography in a relatively short period of time.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00316701
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  • 2
    Digitale Medien
    Digitale Medien
    Technique of laparoscopic ultrasound examination of the liver and pancreas (1996)
    Springer
    Surgical endoscopy and other interventional techniques 10 (1996), S. 684-689 
    Details
    ISSN: 1432-2218
    Schlagwort(e): Laparoscopic ultrasound ; Intraoperative ultrasound ; Ultrasound technique ; Liver ; Pancreas
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Since the introduction of a recent laparoscopic ultrasound (LU), the value of this modality in examining the liver and pancreas has been reported. However, a precise scanning technique of LU has not previously been described. Based on our experience with intraoperative ultrasound during laparotomy, we have developed a technique for complete examination of the entire organs using a rigid LU probe. A 7.5-MHz rigid probe, 10 mm in diameter, was employed. The scanning was performed through three trocar ports: right subcostal, subxiphoid, and umbilical. For the liver, the subcostal scanning provided fundamental transverse views. The subxiphoid and umbilical scanning delineated the areas unable to be imaged by the subcostal scanning. For the pancreas, the subcostal and umbilical scanning demonstrated longitudinal and transverse views, respectively. The subxiphoid scanning enhanced examination of the pancreatic head. Three basic probe maneuvers (advancement-withdrawal, lateral movement, and rotation) and various scanning techniques (contact, probe-standoff, and compression scanning) should be utilized appropriately. With a rigid probe, complete LU examination of the liver and pancreas is possible using these techniques. We believe the present scanning method will help more surgeons learn LU.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00188531
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  • 3
    Digitale Medien
    Digitale Medien
    Accuracy of viscera slide detection of abdominal wall adhesions by ultrasound (1994)
    Springer
    Surgical endoscopy and other interventional techniques 8 (1994), S. 871-874 
    Details
    ISSN: 1432-2218
    Schlagwort(e): Ultrasound ; Detection of adhesions ; Laparoscopic surgery
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Viscera slide is the normal, longitudinal movement of the intraabdominal viscera caused by respiratory excursions of the diaphragm. By detecting areas of restricted viscera slide, ultrasonic imaging was used to identify anterior abdominal wall adhesions prior to laparotomy or laparoscopy. Transcutaneous ultrasound examination was performed on 110 patients. A prediction of adhesions was made for each patient and then compared to the findings during subsequent laparotomy or laparoscopy. Only patients with previous abdominal surgery or history of peritonitis demonstrated adhesions. Sensitivity and specificity of viscera slide ultrasound in predicting adhesions were 90% and 92%. Nine out of 10 false results involved misinterpretation of ultrasound images of the lower one-third of the abdomen. Ultrasonic imaging of viscera slide is highly accurate in detecting abdominal wall adhesions. This technique is most useful in guiding the insertion of trocar in laparoscopic surgery, and as a noninvasive method in studying the formation of adhesions.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00843457
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