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Article ; Online: Imaging findings of pelvic venous insufficiency in patients with postural orthostatic tachycardia syndrome.

Knuttinen, Martha-Gracia / Zurcher, Kenneth S / Khurana, Neal / Patel, Indravadan / Foxx-Orenstein, Amy / Harris, Lucinda A / Lawrence, Andrew / Aguilar, Francisco / Sichlau, Michael / Smith, B Holly / Smith, Steven J

Phlebology

2020 Volume 36, Issue 1, Page(s) 32–37

Abstract: ... improved dysautonomic symptoms following treatment for pelvic venous insufficiency (PVI). This study ... The hypothesis that venous compression and presence of POTS are independent was rejected (: Conclusions ... may benefit from assessment for venous outflow obstruction. ...

Abstract	Objectives: Some patients with postural orthostatic tachycardia syndrome (POTS) demonstrate improved dysautonomic symptoms following treatment for pelvic venous insufficiency (PVI). This study assessed the prevalence of significant left common iliac vein (LCIV) compression in POTS patients. Methods: Radiologists retrospectively reviewed CT images of pelvic veins for 216 women (191 with POTS and 25 age-comparable controls).Quantitative vascular analysis identified percent-diameter compression of the LCIV by the right common iliac artery. Significant LCIV compression was defined as >50%. Results: Significant LCIV compression was found in 69% (131/191) of females with POTS versus 40% (10/25) in controls. The hypothesis that venous compression and presence of POTS are independent was rejected ( Conclusions: Significant LCIV compression was noted in a majority of female POTS patients, suggesting that incidence of iliac venous obstruction may be higher than the general population. Patients with POTS and symptoms of PVI may benefit from assessment for venous outflow obstruction.
MeSH term(s)	Constriction, Pathologic ; Female ; Humans ; Iliac Vein/diagnostic imaging ; Postural Orthostatic Tachycardia Syndrome/diagnostic imaging ; Postural Orthostatic Tachycardia Syndrome/epidemiology ; Retrospective Studies ; Venous Insufficiency/diagnostic imaging ; Venous Insufficiency/epidemiology
Language	English
Publishing date	2020-08-05
Publishing country	England
Document type	Journal Article
ZDB-ID	645172-x
ISSN	1758-1125 ; 0268-3555
ISSN (online)	1758-1125
ISSN	0268-3555
DOI	10.1177/0268355520947610
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Article ; Online: Class I compression therapy improves lower limb vascular flow volume in patients with chronic venous insufficiency - a magnetic resonance imaging study.

Langan, Ewan A / Bayer, Andreas / Burmeister, Jonas / Recke, Andreas / Recke, Anna-Lena / Bergmann-Köster, Claudia / Loff, Detleff / Kahle, Birgit

Journal der Deutschen Dermatologischen Gesellschaft = Journal of the German Society of Dermatology : JDDG

2022 Volume 20, Issue 4, Page(s) 508–510

MeSH term(s)	Chronic Disease ; Humans ; Leg ; Lower Extremity ; Magnetic Resonance Imaging ; Venous Insufficiency/diagnostic imaging ; Venous Insufficiency/therapy
Language	English
Publishing date	2022-03-17
Publishing country	Germany
Document type	Letter
ZDB-ID	2093479-8
ISSN	1610-0387 ; 1610-0379
ISSN (online)	1610-0387
ISSN	1610-0379
DOI	10.1111/ddg.14672
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Article ; Online: An Automatic Classification Method on Chronic Venous Insufficiency Images.

Shi, Qiang / Chen, Weiya / Pan, Ye / Yin, Shan / Fu, Yan / Mei, Jiacai / Xue, Zhidong

Scientific reports

2018 Volume 8, Issue 1, Page(s) 17952

Abstract: Chronic venous insufficiency (CVI) affect a large population, and it cannot heal without doctors' ... In this approach, first, low-level image features are mapped into middle-level semantic features by a concept ... classifier, and a multi-scale semantic model is constructed to form the image representation with rich ...

Abstract	Chronic venous insufficiency (CVI) affect a large population, and it cannot heal without doctors' interventions. However, many patients do not get the medical advisory service in time. At the same time, the doctors also need an assistant tool to classify the patients according to the severity level of CVI. We propose an automatic classification method, named CVI-classifier to help doctors and patients. In this approach, first, low-level image features are mapped into middle-level semantic features by a concept classifier, and a multi-scale semantic model is constructed to form the image representation with rich semantics. Second, a scene classifier is trained using an optimized feature subset calculated by the high-order dependency based feature selection approach, and is used to estimate CVI's severity. At last, classification accuracy, kappa coefficient, F1-score are used to evaluate classification performance. Experiments on the CVI images from 217 patients' medical records demonstrated superior performance and efficiency for CVI-classifier, with classification accuracy up to 90.92%, kappa coefficient of 0.8735 and F1score of 0.9006. This method also outperformed doctors' diagnosis (doctors rely solely on images to make judgments) with accuracy, kappa and F1-score improved by 9.11%, 0.1250 and 0.0955 respectively.
MeSH term(s)	Algorithms ; Chronic Disease ; Humans ; Pattern Recognition, Automated/methods ; Pattern Recognition, Automated/standards ; ROC Curve ; Reproducibility of Results ; Sensitivity and Specificity ; Venous Insufficiency/diagnosis
Language	English
Publishing date	2018-12-18
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-018-36284-5
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Article: Heinz-Lippmann disease as an underrecognized cause of chronic venous insufficiency-associated cutaneous ulcers: Clinical and imaging findings.

Toll, Agustí / Marsico, Salvatore / Duitama, Ivan Camilo Garcia / López-Aventín, Daniel / Claramunt, Anna Agustí / Pujol, Ramon Maria / Ares-Vidal, Jesus / López, Albert Solano

Radiology case reports

2020 Volume 15, Issue 9, Page(s) 1518–1522

Abstract: Venous insufficiency is a frequent cause of consultation in primary care settings ... an underrecognized complication of chronic venous insufficiency that may cause torpid ulcers. We report a case of 78 ... year-old woman, with a long-standing history of venous insufficiency and tibial fracture, showing a non ...

Abstract	Venous insufficiency is a frequent cause of consultation in primary care settings. Heterotopic ossification, consisting of an abnormal formation of true bone in extraskeletal soft tissues, is an underrecognized complication of chronic venous insufficiency that may cause torpid ulcers. We report a case of 78-year-old woman, with a long-standing history of venous insufficiency and tibial fracture, showing a non-healing ulcer associated with subcutaneous calcifications of the left lower extremity. Gold standard of imaging diagnosis are both plain radiographs and computed tomography but also magnetic resonance imaging could be useful for assessing the characteristics of the pathology. We describe a case of Heinz-Lippmann disease, diagnosed by using both computed tomography and magnetic resonance imaging.
Language	English
Publishing date	2020-07-04
Publishing country	Netherlands
Document type	Case Reports
ZDB-ID	2406300-9
ISSN	1930-0433
ISSN	1930-0433
DOI	10.1016/j.radcr.2020.06.035
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Article: Imaging of venous insufficiency.

Khilnani, Neil M / Min, Robert J

Seminars in interventional radiology

2011 Volume 22, Issue 3, Page(s) 178–184

Abstract: ... of superficial venous insufficiency. DUS has also become an important tool in directing and assessing the results ...

Abstract	Duplex ultrasonography (DUS) is an essential part of the evaluation of patients with most forms of superficial venous insufficiency. DUS has also become an important tool in directing and assessing the results of a variety of minimally invasive treatments of this disease. In this article, we review the salient aspects of performing an adequate DUS evaluation and the utility of this technique in guiding treatment.
Language	English
Publishing date	2011-01-27
Publishing country	United States
Document type	Journal Article
ZDB-ID	848341-3
ISSN	1098-8963 ; 0739-9529
ISSN (online)	1098-8963
ISSN	0739-9529
DOI	10.1055/s-2005-921950
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Article ; Online: MR venography using time-resolved imaging in interventional management of pelvic venous insufficiency.

Chennur, Vikash S / Nzekwu, Emeka V / Bhayana, Deepak / Raber, Earl L / Wong, Jason K

Abdominal radiology (New York)

2019 Volume 44, Issue 6, Page(s) 2301–2307

Abstract: ... TRI provides a dynamic assessment of venous insufficiency, serving as an adjunct to the imaging ... imaging (MRV TRI) in the diagnosis of pelvic vein insufficiency (PVI).: Recent findings ... of PVI was performed. N = 8/17 (47%) studies were positive for PVI. TRI imaging demonstrated N = 6/8 ...

Abstract	Purpose of review: To evaluate the utility of magnetic resonance venography with time-resolved imaging (MRV TRI) in the diagnosis of pelvic vein insufficiency (PVI). Recent findings: A retrospective single-center review of N = 17 consecutive patients who underwent pelvic MRI for the assessment of PVI was performed. N = 8/17 (47%) studies were positive for PVI. TRI imaging demonstrated N = 6/8 patients with Grade 0-3 PVI and N = 2/8 patients with May-Thurner Syndrome. N = 4/8 patients underwent elective endovascular management, all of which were technically successful. In the assessment of PVI, MRV TRI provides a dynamic assessment of venous insufficiency, serving as an adjunct to the imaging diagnosis of this pathology.
MeSH term(s)	Contrast Media ; Endovascular Procedures ; Gadolinium ; Humans ; Imaging, Three-Dimensional ; Magnetic Resonance Angiography/methods ; May-Thurner Syndrome/diagnostic imaging ; May-Thurner Syndrome/surgery ; Organometallic Compounds ; Pelvis/blood supply ; Retrospective Studies ; Venous Insufficiency/diagnostic imaging ; Venous Insufficiency/surgery
Chemical Substances	Contrast Media ; Organometallic Compounds ; gadobutrol (1BJ477IO2L) ; Gadolinium (AU0V1LM3JT) ; gadofosveset trisodium (XM33Q67UVH)
Language	English
Publishing date	2019-02-05
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2839786-1
ISSN	2366-0058 ; 2366-004X
ISSN (online)	2366-0058
ISSN	2366-004X
DOI	10.1007/s00261-019-01965-w
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Article ; Online: An Automatic Classification Method on Chronic Venous Insufficiency Images

Qiang Shi / Weiya Chen / Ye Pan / Shan Yin / Yan Fu / Jiacai Mei / Zhidong Xue

Scientific Reports, Vol 8, Iss 1, Pp 1-

2018 Volume 14

Abstract: Abstract Chronic venous insufficiency (CVI) affect a large population, and it cannot heal ... patients. In this approach, first, low-level image features are mapped into middle-level semantic features ... by a concept classifier, and a multi-scale semantic model is constructed to form the image representation ...

Abstract	Abstract Chronic venous insufficiency (CVI) affect a large population, and it cannot heal without doctors’ interventions. However, many patients do not get the medical advisory service in time. At the same time, the doctors also need an assistant tool to classify the patients according to the severity level of CVI. We propose an automatic classification method, named CVI-classifier to help doctors and patients. In this approach, first, low-level image features are mapped into middle-level semantic features by a concept classifier, and a multi-scale semantic model is constructed to form the image representation with rich semantics. Second, a scene classifier is trained using an optimized feature subset calculated by the high-order dependency based feature selection approach, and is used to estimate CVI’s severity. At last, classification accuracy, kappa coefficient, F1-score are used to evaluate classification performance. Experiments on the CVI images from 217 patients’ medical records demonstrated superior performance and efficiency for CVI-classifier, with classification accuracy up to 90.92%, kappa coefficient of 0.8735 and F1score of 0.9006. This method also outperformed doctors’ diagnosis (doctors rely solely on images to make judgments) with accuracy, kappa and F1-score improved by 9.11%, 0.1250 and 0.0955 respectively.
Keywords	Medicine ; R ; Science ; Q
Subject code	006
Language	English
Publishing date	2018-12-01T00:00:00Z
Publisher	Nature Publishing Group
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: A failure of preoperative duplex imaging to diagnose a lower extremity venous aneurysm in a patient with severe chronic venous insufficiency.

Jones, Roy Wesley / Parkerson, Godfrey Ross / Ottinger, Mary / Rodriguez, Eduardo / Park, Brian

SAGE open medical case reports

2017 Volume 5, Page(s) 2050313X17692937

Abstract: ... Preoperative venous duplex demonstrated severe venous insufficiency of the superficial and deep systems ... of misdiagnosing venous aneurysms with duplex imaging; therefore, clinical suspicion must remain high ... stasis ulcers in association with a superficial venous aneurysm at the right saphenofemoral junction that was misdiagnosed ...

Abstract	Objective: We present a case of recurrent bilateral lower extremity venous stasis ulcers in association with a superficial venous aneurysm at the right saphenofemoral junction that was misdiagnosed on preoperative duplex scanning. Methods: A 53-year-old female presented to our clinic with 6-year history of bilateral lower extremity venous stasis ulcers. Her past medical history was significant for refractory venous stasis ulcers of the bilateral lower extremities present for 6 years and morbid obesity. Results: Preoperative venous duplex demonstrated severe venous insufficiency of the superficial and deep systems, but a venous aneurysm was not appreciated. During the high ligation of the right saphenofemoral junction, a 3 × 4 × 5 cm aneurysm was encountered. Repair consisted of aneurysm resection, high ligation of the greater saphenous vein, dissociation of the great saphenous and anterior saphenous veins, and stab phlebectomy of large varicose veins of the thigh and lower leg. The patient recovered uneventfully and experienced complete healing of the venous stasis ulcer in several weeks. Conclusion: Superficial venous aneurysms of the lower extremity are rare and can be often missed on preoperative duplex ultrasound imaging. Large diameter measurements of the proximal greater saphenous vein and obesity increase the risk of misdiagnosing venous aneurysms with duplex imaging; therefore, clinical suspicion must remain high. These aneurysms can be associated with significant symptoms for which repair is indicated.
Language	English
Publishing date	2017-02-08
Publishing country	England
Document type	Case Reports
ZDB-ID	2736953-5
ISSN	2050-313X
ISSN	2050-313X
DOI	10.1177/2050313X17692937
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Article ; Online: Experience of Using Shear Wave Elastography Imaging in Superficial Venous Insufficiency of the Lower Extremity.

Durmaz, Mehmet Sedat / Arslan, Serdar / Baysal, Ahmet Nihat / Durmaz, Funda Gökgöz / Sivri, Mesut / Cebeci, Hakan / Tolu, İsmet

Ultrasound quarterly

2018 Volume 34, Issue 3, Page(s) 176–182

Abstract: ... superficial venous insufficiency (VI). A total of 138 symptomatic patients, 51 asymptomatic volunteers, and ... SWE values was seen (P < 0.001). Venous insufficiency can be diagnosed with a 84.7% sensitivity and 84 ... specificity when 22,350 kPa was designated as the cutoff value in GSV. Venous insufficiency can be diagnosed ...

Abstract	We investigated the effectiveness of shear wave elastography (SWE) in patients with lower extremity superficial venous insufficiency (VI). A total of 138 symptomatic patients, 51 asymptomatic volunteers, and a total of 359 lower extremities (257 symptomatic, 102 asymptomatic) were examined. All participants underwent Doppler ultrasound (US) evaluation to determine VI and SWE measurements performed by manually drawing vein wall and perivenous tissue with free region of interest at the great saphenous vein (GSV) and small saphenous vein (SSV). The GSV, SSV diameter, VI, and volume flow of reflux were compared with the SWE values. The SWE values of the symptomatic group for GSV and SSV were significantly higher than those of the asymptomatic control group regardless of whether VI was detected by Doppler US (P < 0.001). There was a statistically significant increase in SWE values for the symptomatic group who were diagnosed as having reflux in GSV and SSV (P < 0.001). A significant positive correlation between increased GSV, SSV diameter, and SWE values was seen (P < 0.001). Venous insufficiency can be diagnosed with a 84.7% sensitivity and 84.2% specificity when 2655 m/s was designated as cutoff value, and with a 85.4% sensitivity and 84.2% specificity when 22,350 kPa was designated as the cutoff value in GSV. Venous insufficiency can be diagnosed with a 84.3% sensitivity and 82.4% specificity when 2845 m/s was designated as cutoff value, and with a 85.7% sensitivity and 84.4% specificity when 27,100 kPa was designated as the cutoff value in SSV. Shear wave elastography may be used effectively in addition to conventional Doppler US examination in diagnosing and following VI.
MeSH term(s)	Adult ; Aged ; Case-Control Studies ; Elasticity Imaging Techniques/methods ; Female ; Humans ; Lower Extremity ; Male ; Middle Aged ; ROC Curve ; Reference Values ; Retrospective Studies ; Saphenous Vein/diagnostic imaging ; Saphenous Vein/physiopathology ; Sensitivity and Specificity ; Turkey ; Ultrasonography, Doppler, Color/methods ; Venous Insufficiency/diagnostic imaging ; Venous Insufficiency/physiopathology ; Young Adult
Language	English
Publishing date	2018-04-26
Publishing country	United States
Document type	Journal Article
ZDB-ID	645107-x
ISSN	1536-0253 ; 0894-8771
ISSN (online)	1536-0253
ISSN	0894-8771
DOI	10.1097/RUQ.0000000000000356
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Zs.A 2485: Show issues

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Article ; Online: Pelvic venous insufficiency: imaging diagnosis, treatment approaches, and therapeutic issues.

Knuttinen, M-Gracia / Xie, Karen / Jani, Aarti / Palumbo, Alison / Carrillo, Tami / Mar, Winnie

AJR. American journal of roentgenology

2015 Volume 204, Issue 2, Page(s) 448–458

Abstract: ... venous incompetence. Findings from various noninvasive imaging studies, such as Doppler ultrasound and ... the imaging used to make the diagnosis and to summarize the treatment options. CONCLUSION. Pelvic congestion ...

Abstract	OBJECTIVE. The purposes of this article are to review the causes of pelvic congestion syndrome and the imaging used to make the diagnosis and to summarize the treatment options. CONCLUSION. Pelvic congestion syndrome is one of many causes of chronic pelvic pain. It is thought to arise from ovarian and pelvic venous incompetence. Findings from various noninvasive imaging studies, such as Doppler ultrasound and MRI, in association with the clinical symptoms are critical in establishing the diagnosis.
MeSH term(s)	Diagnostic Imaging ; Embolization, Therapeutic ; Humans ; Pelvis ; Venous Insufficiency/diagnosis ; Venous Insufficiency/therapy
Language	English
Publishing date	2015-02
Publishing country	United States
Document type	Journal Article ; Review
ZDB-ID	82076-3
ISSN	1546-3141 ; 0361-803X ; 0092-5381
ISSN (online)	1546-3141
ISSN	0361-803X ; 0092-5381
DOI	10.2214/AJR.14.12709
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