A 42 years old woman suffering from repeated events of intensive vaginal bleeding during the week off birth control pills was referred for diagnostic hysteroscopy. The patient underwent hysterohy drosonoscopy, a 3-ste...A 42 years old woman suffering from repeated events of intensive vaginal bleeding during the week off birth control pills was referred for diagnostic hysteroscopy. The patient underwent hysterohy drosonoscopy, a 3-step procedure, including a transvaginal ultrasound scan, a diagnostic hysteroscopy and immediate hydrosonography. A3 cmintramural myoma was detected by the ultrasound scan without impinging onto the uterine cavity as visualized by diagnostic hysteroscopy. However, continuous hydrosonographic evaluation of the uterus, performed immediately afterwards, unveiled a fibroid with a significant intracavitary portion. A falsely normal cavity could be appreciated by high pressured hysteroscopy, while during the gradual fall of the intracavitary pressure a significant lesion could be revealed encroaching into the lumen. In the absence of an agreed distention pressure range during hysteroscopy, an immediate hydrosonography may serve as an auxiliary tool to follow the uterine wall contour as distention pressure declines during the eventual escape of the distention fluid from the lumen. Uterine wall contour is heavily dependent on the distension pressure and guidelines for intrcavitary pressure during hysteroscopy are evidently needed.展开更多
In the last two decades, there has been substantial development in the diagnostic possibilities for examining the small intestine. Compared with computerized tomography, magnetic resonance imaging, capsule endoscopy a...In the last two decades, there has been substantial development in the diagnostic possibilities for examining the small intestine. Compared with computerized tomography, magnetic resonance imaging, capsule endoscopy and double-balloon endoscopy, ultrasonography has the advantage of being cheap, portable, flexible and user-and patient-friendly, while at the same time providing the clinician with image data of high temporal and spatial resolution. The method has limitations with penetration in obesity and with intestinal air impairing image quality. The flexibility ultrasonography offers the examiner also implies that a systematic approach during scanning is needed. This paper reviews the basic scanning techniques and new modalities such as contrast-enhanced ultrasound, elastography, strain rate imaging, hydrosonography, allergosonography, endoscopic sonography and nutritional imaging, and the literature on disease-specific findings in the small intestine. Some of these methods have shown clinical benefit, while others are under research and development to establish their role in the diagnostic repertoire. However, along with improved overall image quality of new ultrasound scanners, these methodshave enabled more anatomical and physiological changes in the small intestine to be observed. Accordingly, ultrasound of the small intestine is an attractive clinical tool to study patients with a range of diseases.展开更多
文摘A 42 years old woman suffering from repeated events of intensive vaginal bleeding during the week off birth control pills was referred for diagnostic hysteroscopy. The patient underwent hysterohy drosonoscopy, a 3-step procedure, including a transvaginal ultrasound scan, a diagnostic hysteroscopy and immediate hydrosonography. A3 cmintramural myoma was detected by the ultrasound scan without impinging onto the uterine cavity as visualized by diagnostic hysteroscopy. However, continuous hydrosonographic evaluation of the uterus, performed immediately afterwards, unveiled a fibroid with a significant intracavitary portion. A falsely normal cavity could be appreciated by high pressured hysteroscopy, while during the gradual fall of the intracavitary pressure a significant lesion could be revealed encroaching into the lumen. In the absence of an agreed distention pressure range during hysteroscopy, an immediate hydrosonography may serve as an auxiliary tool to follow the uterine wall contour as distention pressure declines during the eventual escape of the distention fluid from the lumen. Uterine wall contour is heavily dependent on the distension pressure and guidelines for intrcavitary pressure during hysteroscopy are evidently needed.
基金Supported by Medviz.-an imaging and visualisation consortium between Haukeland University Hospital, University in Bergen and Christian Michelsen Research
文摘In the last two decades, there has been substantial development in the diagnostic possibilities for examining the small intestine. Compared with computerized tomography, magnetic resonance imaging, capsule endoscopy and double-balloon endoscopy, ultrasonography has the advantage of being cheap, portable, flexible and user-and patient-friendly, while at the same time providing the clinician with image data of high temporal and spatial resolution. The method has limitations with penetration in obesity and with intestinal air impairing image quality. The flexibility ultrasonography offers the examiner also implies that a systematic approach during scanning is needed. This paper reviews the basic scanning techniques and new modalities such as contrast-enhanced ultrasound, elastography, strain rate imaging, hydrosonography, allergosonography, endoscopic sonography and nutritional imaging, and the literature on disease-specific findings in the small intestine. Some of these methods have shown clinical benefit, while others are under research and development to establish their role in the diagnostic repertoire. However, along with improved overall image quality of new ultrasound scanners, these methodshave enabled more anatomical and physiological changes in the small intestine to be observed. Accordingly, ultrasound of the small intestine is an attractive clinical tool to study patients with a range of diseases.
