Duplex Ultrasonography of the Mesenteric Circulation

2000 ◽  
pp. 391-399
Author(s):  
William R. Flinn ◽  
Gail P. Sandager
Keyword(s):  
Duplex Ultrasonography ◽  
Mesenteric Circulation

Duplex Ultrasonography of the Mesenteric Circulation

2008 ◽  
pp. 466-475 ◽  
Author(s):  
David G. Neschis ◽  
William R. Flinn
Keyword(s):  
Duplex Ultrasonography ◽  
Mesenteric Circulation

Duplex Ultrasonography of the Mesenteric Circulation

2012 ◽  
pp. 625-636
Author(s):  
David G. Neschis ◽  
William R. Flinn
Keyword(s):  
Duplex Ultrasonography ◽  
Mesenteric Circulation

Duplex Ultrasonography of the Mesenteric Circulation

2017 ◽  
pp. 685-697
Author(s):  
David G. Neschis ◽  
William R. Flinn
Keyword(s):  
Duplex Ultrasonography ◽  
Mesenteric Circulation

Duplex Ultrasonography of the Mesenteric Circulation

2021 ◽  
pp. 1-17
Author(s):  
Robin E. Williamson ◽  
William R. Flinn ◽  
David G. Neschis
Keyword(s):  
Duplex Ultrasonography ◽  
Mesenteric Circulation

scholarly journals Physical Examination and Ultrasound Evaluation of Patients with Superficial Venous Disease

2021 ◽  
Vol 38 (02) ◽  
pp. 167-175
Author(s):  
Leigh C. Casadaban ◽  
John M. Moriarty ◽  
Cheryl H. Hoffman
Keyword(s):  
Physical Examination ◽  
Venous Insufficiency ◽  
Duplex Ultrasonography ◽  
Venous Disease ◽  
Venous Anatomy ◽  
Ultrasound Evaluation ◽  
Clinical Presentations ◽  
Ultrasound Assessment ◽  
Anatomic Variants ◽  
Tools And Techniques

AbstractSystematic and standardized evaluation of superficial venous disease, guided by knowledge of the various clinical presentations, venous anatomy, and pathophysiology of reflux, is essential for appropriate diagnosis and optimal treatment. Duplex ultrasonography is the standard for delineating venous anatomy, detecting anatomic variants, and identifying the origin of venous insufficiency. This article reviews tools and techniques essential for physical examination and ultrasound assessment of patients with superficial venous disease.

Predicting Perinatal Outcome from Prenatal Ultrasound Characteristics in Pregnancies Complicated by Gastroschisis

2015 ◽  
Vol 39 (4) ◽  
pp. 279-286 ◽  
Author(s):  
Gabriella Martillotti ◽  
Isabelle Boucoiran ◽  
Amélie Damphousse ◽  
Andrée Grignon ◽  
Eric Dubé ◽  
...  
Keyword(s):  
Gestational Age ◽  
Predictive Value ◽  
Intrauterine Growth Restriction ◽  
Adverse Outcome ◽  
Prenatal Ultrasound ◽  
Intestinal Lumen ◽  
Third Trimester ◽  
Mesenteric Circulation ◽  
Intrauterine Growth ◽  
Bowel Dilatation

Introduction: The objective of the study was to establish the predictive value of prenatal ultrasound markers for complex gastroschisis (GS) in the first 10 days of life. Material and Methods: In this retrospective cohort study over 11 years (2000-2011) of 117 GS cases, the following prenatal ultrasound signs were analyzed at the last second- and third-trimester ultrasounds: intrauterine growth restriction, intra-abdominal bowel dilatation (IABD) adjusted for gestational age, extra-abdominal bowel dilatation (EABD) ≥25 mm, stomach dilatation, stomach herniation, perturbed mesenteric circulation, absence of bowel lumen and echogenic dilated bowel loops (EDBL). Results: Among 114 live births, 16 newborns had complex GS (14.0%). Death was seen in 16 cases (13.7%): 3 intrauterine fetal deaths, 9 complex GS and 4 simple GS. Second-trimester markers had limited predictive value. Third-trimester IABD, EABD, EDBL, absence of intestinal lumen and perturbed mesenteric circulation were statistically associated with complex GS and death. IABD was able to predict complex GS with a sensitivity of 50%, a specificity of 91%, a positive predictive value of 47% and a negative predictive value of 92%. Discussion: Third-trimester IABD adjusted for gestational age appears to be the prenatal ultrasound marker most strongly associated with adverse outcome in GS.

scholarly journals Measurement of Carotid Stenosis Using Duplex Ultrasonography with a Microconvex Array Transducer: A Validation with Cerebral Angiography

2013 ◽  
Vol 22 (8) ◽  
pp. e360-e365
Author(s):  
Yohei Tateishi ◽  
Akira Tsujino ◽  
Jumpei Hamabe ◽  
Osamu Tasaki ◽  
Minoru Morikawa ◽  
...  
Keyword(s):  
Carotid Stenosis ◽  
Cerebral Angiography ◽  
Duplex Ultrasonography ◽  
Array Transducer

scholarly journals Cerebral Autoregulation during Postural Change in Patients with Cervical Spinal Cord Injury—A Carotid Duplex Ultrasonography Study

Diagnostics ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1321
Author(s):  
Joo-Hyun Kee ◽  
Jun-Hyeong Han ◽  
Chang-Won Moon ◽  
Kang Hee Cho
Keyword(s):  
Blood Pressure ◽  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Blood Flow ◽  
Cerebral Autoregulation ◽  
Duplex Ultrasonography ◽  
Postural Change ◽  
Carotid Duplex ◽  
Cord Injury ◽  
Carotid Duplex Ultrasonography

Patients with a spinal cord injury (SCI) frequently experience sudden falls in blood pressure during postural change. Few studies have investigated whether the measurement of blood flow velocity within vessels can reflect brain perfusion during postural change. By performing carotid duplex ultrasonography (CDU), we investigated changes in cerebral blood flow (CBF) during postural changes in patients with a cervical SCI, determined the correlation of CBF change with presyncopal symptoms, and investigated factors affecting cerebral autoregulation. We reviewed the medical records of 100 patients with a cervical SCI who underwent CDU. The differences between the systolic blood pressure, diastolic blood pressure, and CBF volume in the supine posture and after 5 min at 50° tilt were evaluated. Presyncopal symptoms occurred when the blood flow volume of the internal carotid artery decreased by ≥21% after tilt. In the group that had orthostatic hypotension and severe CBF decrease during tilt, the body mass index and physical and functional scores were lower than in other groups, and the proportion of patients with a severe SCI was high. The higher the SCI severity and the lower the functional score, the higher the possibility of cerebral autoregulation failure. CBF should be assessed by conducting CDU in patients with a high-level SCI.

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