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Miranda FC, e Castro ADA, Yoshimura FB, Godoy-Santos AL, Santos DDCB, Rosemberg LA, Taneja AK. Imaging Features of Plantar Vein Thrombosis: An Easily Overlooked Condition in the Differential Diagnosis of Foot Pain. Diagnostics (Basel) 2024; 14:126. [PMID: 38248003 PMCID: PMC10814699 DOI: 10.3390/diagnostics14020126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/31/2023] [Accepted: 01/02/2024] [Indexed: 01/23/2024] Open
Abstract
Plantar vein thrombosis is a venous disorder affecting deep plantar veins that can manifest with non-specific localized pain, plantar foot pain, swelling, and sensation of fullness. Plantar veins are not routinely assessed during sonographic scans for deep venous thrombosis, which makes plantar venous thrombosis a commonly missed diagnosis. This paper provides a comprehensive review of the venous anatomy of the foot and imaging findings of plantar venous thrombosis as well as discusses the current literature on the topic and its differential diagnoses.
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Affiliation(s)
- Frederico Celestino Miranda
- Hospital Israelita Albert Einstein, São Paulo 05652-900, Brazil; (F.C.M.); (A.d.A.e.C.); (F.B.Y.); (A.L.G.-S.); (D.d.C.B.S.); (L.A.R.)
| | - Adham do Amaral e Castro
- Hospital Israelita Albert Einstein, São Paulo 05652-900, Brazil; (F.C.M.); (A.d.A.e.C.); (F.B.Y.); (A.L.G.-S.); (D.d.C.B.S.); (L.A.R.)
- Department of Imaging Diagnosis, Universidade Federal de São Paulo, São Paulo 04024-002, Brazil
| | - Fábio Brandão Yoshimura
- Hospital Israelita Albert Einstein, São Paulo 05652-900, Brazil; (F.C.M.); (A.d.A.e.C.); (F.B.Y.); (A.L.G.-S.); (D.d.C.B.S.); (L.A.R.)
| | - Alexandre Leme Godoy-Santos
- Hospital Israelita Albert Einstein, São Paulo 05652-900, Brazil; (F.C.M.); (A.d.A.e.C.); (F.B.Y.); (A.L.G.-S.); (D.d.C.B.S.); (L.A.R.)
- Faculdade de Medicina, USP, São Paulo 05403-010, Brazil
| | - Durval do Carmo Barros Santos
- Hospital Israelita Albert Einstein, São Paulo 05652-900, Brazil; (F.C.M.); (A.d.A.e.C.); (F.B.Y.); (A.L.G.-S.); (D.d.C.B.S.); (L.A.R.)
| | - Laercio Alberto Rosemberg
- Hospital Israelita Albert Einstein, São Paulo 05652-900, Brazil; (F.C.M.); (A.d.A.e.C.); (F.B.Y.); (A.L.G.-S.); (D.d.C.B.S.); (L.A.R.)
| | - Atul Kumar Taneja
- Department of Radiology, UT Southwestern Medical Center, Dallas, TX 75390, USA
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Lunney A, Donovan T. 'Current trends in lower limb Doppler scanning in Ireland'. Radiography (Lond) 2023; 29:50-55. [PMID: 36308847 DOI: 10.1016/j.radi.2022.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 10/03/2022] [Accepted: 10/11/2022] [Indexed: 11/07/2022]
Abstract
INTRODUCTION The clinical need to diagnose and treat above knee deep vein thrombosis (AKDVT) has long been established in literature and in practice. On the other hand, the need to diagnose and treat below knee deep vein thrombosis (BKDVT) continues to be debated in literature. This has resulted in variation in clinical guidelines and protocols nationwide. This research aims to establish if there is a standard practice in Irish ultrasound departments and if so, what that practice is and where sonographers are getting information to inform this. METHODS A questionnaire was designed using SurveyMonkey and distributed using online platforms. The questionnaire aimed to establish the experience of the sonographer, the types of exams performed, protocols/guidelines used as well as scenarios where the sonographer might deviate from protocol. RESULTS The study yielded 90 responses. The research found 49% of sites perform whole leg ultrasound routinely and 46% perform proximal ultrasound only. 41% of respondents said their protocols were based on clinical guidelines however, 22% of participants didn't know what these guidelines were. 49% of respondents were unaware of what treatment a patient would receive in cases where there is a high clinical suspicion of DVT, but the ultrasound is negative for DVT. CONCLUSION The research has established a lack of consistency amongst sonographers and scanning practices with a fairly even split (49% of respondents perform whole leg ultrasound and 46% perform proximal only). Not only has the research identified a lack of standardised scanning approach nationwide, but inconsistencies are also seen in the guidelines that inform our department's protocols as well as inconspicuous terms used in radiology reporting and jargon in literature in relation to DVT. IMPLICATIONS FOR PRACTICE 1. An inconsistency in practice has been established. Discussions are now needed to decide what guidelines should be implemented into Irish Ultrasound DVT protocols. 2. A national protocol for BKDVT would result in all patients in Ireland having access to the same standard of care. 3. Call for consensus on appropriate training for sonographers undertaking LLDs.
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Affiliation(s)
- A Lunney
- University of Cumbria, Lancaster, United Kingdom; University College Dublin, Ireland.
| | - T Donovan
- University of Cumbria, Lancaster, United Kingdom.
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Novel Diagnostic Options without Contrast Media or Radiation: Triggered Angiography Non-Contrast-Enhanced Sequence Magnetic Resonance Imaging in Treating Different Leg Venous Diseases. Diagnostics (Basel) 2020; 10:diagnostics10060355. [PMID: 32485855 PMCID: PMC7344462 DOI: 10.3390/diagnostics10060355] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 05/23/2020] [Accepted: 05/27/2020] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVES Venous diseases in the lower extremities long lacked an objective diagnostic tool prior to the advent of the triggered angiography non-contrast-enhanced (TRANCE) technique. METHODS An observational study with retrospective data analysis. MATERIALS Between April 2017 and June 2019, 66 patients were evaluated for venous diseases through TRANCE-magnetic resonance imaging (MRI) and were grouped according to whether they had occlusive venous (OV) disease, a static venous ulcer (SU), or symptomatic varicose veins (VV). The clinical appliance of TRANCE-MRI was analysed by groups. RESULTS In total, 63 patients completed the study. TRANCE-MRI could identify venous thrombosis, including that of the abdominal and pelvic vessels, and it enabled the timely treatment of underlying diseases in patients with OV disease. TRANCE-MRI was statistically compared with the duplex scan, the gold standard to exclude deep vein thrombosis (DVT) in the legs, with regard to their abilities to detect venous thrombosis by using Cohen's kappa coefficient at a compatible value of 0.711. It could provide the occlusion degree of the peripheral artery for treating an SU. Finally, TRANCE-MRI can be used to outline all collateral veins and occult thrombi before treating symptomatic or recurrent VV to ensure a perfect surgical plan and to avoid complications. CONCLUSIONS TRANCE-MRI is an innovative tool in the treatment of versatile venous pathology in the lower extremities and is widely used for vascular diseases in our institution.
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Previtali P, Paladini S, Gandini L, Allemano MC, Morosi C, Biassoni V, Colombo J, Tagliabue E, Codazzi D. Role of serial ultrasound screening of venous thrombosis in oncologic children with central lines. PEDIATRIC HEMATOLOGY ONCOLOGY JOURNAL 2019. [DOI: 10.1016/j.phoj.2019.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Mumoli N, Mastroiacovo D, Giorgi-Pierfranceschi M, Pesavento R, Mochi M, Cei M, Pomero F, Mazzone A, Vitale J, Ageno W, Dentali F. Ultrasound elastography is useful to distinguish acute and chronic deep vein thrombosis. J Thromb Haemost 2018; 16:2482-2491. [PMID: 30225971 DOI: 10.1111/jth.14297] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Indexed: 12/18/2022]
Abstract
Essentials Ultrasound elastography uses tissue deformation to assess the relative quantification of its elasticity. Compression and duplex ultrasonography may be unable to correctly determine the thrombus age. Ultrasound elastography may be useful to distinguish between acute and chronic deep vein thrombosis. The exact determination of the thrombus age could have both therapeutic and prognostic implications. BACKGROUND: Background Ultrasound elastography (UE) imaging is a novel sonographic technique that is commonly employed for relative quantification of tissue elasticity. Its applicability to venous thromboembolic events has not yet been fully established; in particular, it is unclear whether this technique may be useful in determining the age of deep vein thrombosis (DVT). Thus, the aim of this study was to assess the role of UE in distinguishing acute from chronic DVT. Methods Consecutive patients with a first unprovoked acute and chronic (3 months old) DVT of the lower limbs were analyzed. Patients with recurrent DVT or with a suspected recurrence were excluded. The mean elasticity index (EI) values of acute and chronic popliteal and femoral vein thrombosis were compared. The accuracy of the EI in distinguishing acute from chronic DVT was also assessed by measuring the sensitivity, specificity, positive and negative predictive values, and likelihood ratios. Results One-hundred and forty-nine patients (mean age 63.9 years, standard deviation 13.6; 73 males) with acute and chronic DVT were included. The mean EI of acute femoral DVT was higher than that of chronic femoral DVT (5.09 versus 2.46), and the mean EI of acute popliteal DVT was higher than that of chronic popliteal DVT (4.96 versus 2.48). An EI value of > 4 resulted in a sensitivity of 98.9% (95% confidence interval [CI] 93.3-99.9), a specificity of 99.1% (95% CI 94.8-99.9), a positive predictive value of 91.1% (95% CI 77.9-97.1), a negative predictive value of 98.6% (95% CI 91.3-99.9), a positive likelihood ratio of 13.23 (95% CI 93-653) and a negative likelihood ratio of 0.001 (95% CI 0.008-0.05) for acute DVT. Conclusions UE appears to be a promising technique for distinguishing between acute and chronic DVT. Larger prospective studies are warranted to confirm our preliminary findings.
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Affiliation(s)
- N Mumoli
- Department of Internal Medicine, Livorno Hospital, Livorno, Italy
| | - D Mastroiacovo
- Department of Internal Medicine, Livorno Hospital, Livorno, Italy
| | | | - R Pesavento
- Department of Internal Medicine, Livorno Hospital, Livorno, Italy
| | - M Mochi
- General Electric Healthcare, Milano, Italy
| | - M Cei
- Department of Internal Medicine, Livorno Hospital, Livorno, Italy
| | - F Pomero
- Department of Internal Medicine, Livorno Hospital, Livorno, Italy
| | - A Mazzone
- Department of Internal Medicine, Livorno Hospital, Livorno, Italy
| | - J Vitale
- Department of Clinical and Experimental Medicine, Insubria University, Varese, Italy
| | - W Ageno
- Department of Clinical and Experimental Medicine, Insubria University, Varese, Italy
| | - F Dentali
- Department of Clinical and Experimental Medicine, Insubria University, Varese, Italy
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Chen H, He X, Xie G, Liang J, Ye Y, Deng W, He Z, Liu D, Li D, Liu X, Fan Z. Cardiovascular magnetic resonance black-blood thrombus imaging for the diagnosis of acute deep vein thrombosis at 1.5 Tesla. J Cardiovasc Magn Reson 2018; 20:42. [PMID: 29936910 PMCID: PMC6016134 DOI: 10.1186/s12968-018-0459-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 05/16/2018] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND The aim was to investigate the feasibility of a cardiovascular magnetic resonance (CMR) black-blood thrombus imaging (BBTI) technique, based on delay alternating with nutation for tailored excitation black-blood preparation and a variable flip angle turbo-spin-echo readout, for the diagnosis of acute deep vein thrombosis (DVT) at 1.5 T. METHODS BBTI was conducted in 15 healthy subjects and 30 acute DVT patients. Contrast-enhanced CMR venography (CE-CMRV) was conducted for comparison and only performed in the patients. Apparent contrast-to-noise ratios between the thrombus and the muscle/lumen were calculated to determine whether BBTI could provide an adequate thrombus signal for diagnosis. Two blinded readers assessed the randomized BBTI images from all participants and made independent decisions on the presence or absence of thrombus at the segment level. Images obtained by CE-CMRV were also randomized and assessed by the two readers. Using the consensus CE-CMRV as a reference, the sensitivity, specificity, positive and negative predictive values, and accuracy of BBTI, as well as its diagnostic agreement with CE-CMRV, were calculated. Additionally, diagnostic confidence and interobserver diagnostic agreement were evaluated. RESULTS The thrombi in the acute phase exhibited iso- or hyperintense signals on the BBTI images. All the healthy subjects were correctly identified from the participants based on the segment level. The diagnostic confidence of BBTI was comparable to that of CE-CMRV (3.69 ± 0.52 vs. 3.70 ± 0.47). High overall sensitivity (95.2%), SP (98.6%), positive predictive value (96.0%), negative predictive value (98.3%), and accuracy (97.7%), as well as excellent diagnostic and interobserver agreements, were achieved using BBTI. CONCLUSION BBTI is a reliable, contrast-free technique for the diagnosis of acute DVT at 1.5 T.
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Affiliation(s)
- Hanwei Chen
- Department of Radiology, Guangzhou Panyu Central Hospital, Guangzhou, 511400 Guangdong China
- Medical Imaging Institute of Panyu, Guangzhou, 511400 Guangdong China
| | - Xueping He
- Department of Radiology, Guangzhou Panyu Central Hospital, Guangzhou, 511400 Guangdong China
- Medical Imaging Institute of Panyu, Guangzhou, 511400 Guangdong China
| | - Guoxi Xie
- The Sixth Affiliated Hospital, Guangzhou Medical University, Xinzao, Panyu District, Qingyuan, 511518 Guangdong China
- Department of Biomedical Engineering of Basic Medical School, Guangzhou Medical University, Guangzhou, 511436 Guangdong China
| | - Jianke Liang
- Department of Radiology, Guangzhou Panyu Central Hospital, Guangzhou, 511400 Guangdong China
| | - Yufeng Ye
- Department of Radiology, Guangzhou Panyu Central Hospital, Guangzhou, 511400 Guangdong China
| | - Wei Deng
- Department of Radiology, Guangzhou Panyu Central Hospital, Guangzhou, 511400 Guangdong China
| | - Zhuonan He
- Department of Radiology, Guangzhou Panyu Central Hospital, Guangzhou, 511400 Guangdong China
| | - Dexiang Liu
- Department of Radiology, Guangzhou Panyu Central Hospital, Guangzhou, 511400 Guangdong China
| | - Debiao Li
- Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048 USA
| | - Xin Liu
- Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 Guangdong China
| | - Zhaoyang Fan
- Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048 USA
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Aslan A, Barutca H, Ayaz E, Aslan M, Kocaaslan C, Inan I, Sahin S, Yıkılmaz A. Is real-time elastography helpful to differentiate acute from subacute deep venous thrombosis? A preliminary study. JOURNAL OF CLINICAL ULTRASOUND : JCU 2018; 46:116-121. [PMID: 28940429 DOI: 10.1002/jcu.22522] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 04/30/2017] [Accepted: 06/22/2017] [Indexed: 06/07/2023]
Abstract
PURPOSE To detect and characterize changes in stiffness of thrombus in patients with acute and subacute deep venous thrombosis (DVT) by using real-time elastography (RTE). METHODS Fifty-eight patients with acute or subacute DVT were prospectively evaluated by B-mode sonography (US), color Doppler US (CDUS), and RTE. Two radiologists evaluated the thrombus echogenicity, compressibility, and recanalization of the affected vein, and thrombus stiffness in consensus. The thrombi were classified into 3 groups as soft, intermediate, and hard on RTE images. RESULTS The final study group consisted of 30 patients with acute DVT, among whom 10 were women (33%), and 19 patients with subacute DVT, among whom 6 were women (32%). The presence of hypoechoic thrombus, incompressible vein, and absence of recanalization on US and CDUS were significantly associated with acute DVT (P < .001 for all variables). The differences in elasticity pattern of the thrombi between acute and subacute DVT were not significant (P = .202). CONCLUSION Venous thrombus hardens with age; however, elastography pattern on RTE, in its present form, may not be able to differentiate acute DVT from subacute DVT.
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Affiliation(s)
- Ahmet Aslan
- Department of Radiology, Medical School of Istanbul Medeniyet University, Kadikoy, Istanbul, Turkey
- Department of Radiology, Dr. Siyami Ersek Thoracic and Cardiovascular Surgery Training and Research Hospital, Kadiköy, Istanbul, Turkey
| | - Hakan Barutca
- Department of Radiology, Dr. Siyami Ersek Thoracic and Cardiovascular Surgery Training and Research Hospital, Kadiköy, Istanbul, Turkey
| | - Ercan Ayaz
- Department of Radiology, Medical School of Istanbul Medeniyet University, Kadikoy, Istanbul, Turkey
| | - Mine Aslan
- Department of Radiology, Medical School of Istanbul Medeniyet University, Kadikoy, Istanbul, Turkey
- Department of Radiology, Ümraniye Training and Research Hospital, Ümraniye, Istanbul, Turkey
| | - Cemal Kocaaslan
- Department of Cardiovascular Surgery, Dr. Siyami Ersek Thoracic and Cardiovascular Surgery Training and Research Hospital, Kadiköy, Istanbul, Turkey
| | - Ibrahim Inan
- Department of Radiology, Medical School of Istanbul Medeniyet University, Kadikoy, Istanbul, Turkey
| | - Sinan Sahin
- Department of Radiology, Dr. Siyami Ersek Thoracic and Cardiovascular Surgery Training and Research Hospital, Kadiköy, Istanbul, Turkey
| | - Ali Yıkılmaz
- Department of Radiology, Medical School of Istanbul Medeniyet University, Kadikoy, Istanbul, Turkey
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Theron A, Biron-Andreani C, Haouy S, Saumet L, Saguintah M, Jeziorski E, Sirvent N. [Thromboembolic disease in pediatric oncology]. Arch Pediatr 2018; 25:139-144. [PMID: 29325825 DOI: 10.1016/j.arcped.2017.10.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 08/20/2017] [Accepted: 10/26/2017] [Indexed: 11/30/2022]
Abstract
The survival rate of children with cancer is now close to 80 %, as a result of continuous improvement in diagnostic and treatment procedures. Prevention and treatment of treatment-associated complications is now a major challenge. Thromboembolic venous disease, due to multifactorial pathogenesis, is a frequent complication (up to 40 % asymptomatic thrombosis in children with cancer), responsible for significant morbidity. Predominantly in children with acute lymphoblastic leukemia, lymphoma, or sarcoma, thromboembolic disease justifies primary prophylaxis in certain populations at risk, whether genetic or environmental. The curative treatment, well codified, is based on the administration of low-molecular-weight heparin. In the absence of robust pediatric prospective studies, this article proposes a concise decision tree summarizing the preventive and curative strategy.
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Affiliation(s)
- A Theron
- Département d'onco-hématologie pédiatrique, CHU de Montpellier, 371, avenue du Doyen-Gaston-Giraud, 34090 Montpellier, France; Département d'hématologie biologie, centre régional de traitement de l'hémophilie, CHU de Montpellier, 80, avenue Augustin-Fliche, 34090 Montpellier, France.
| | - C Biron-Andreani
- Département d'hématologie biologie, centre régional de traitement de l'hémophilie, CHU de Montpellier, 80, avenue Augustin-Fliche, 34090 Montpellier, France
| | - S Haouy
- Département d'onco-hématologie pédiatrique, CHU de Montpellier, 371, avenue du Doyen-Gaston-Giraud, 34090 Montpellier, France
| | - L Saumet
- Département d'onco-hématologie pédiatrique, CHU de Montpellier, 371, avenue du Doyen-Gaston-Giraud, 34090 Montpellier, France
| | - M Saguintah
- Département de radiologie pédiatrique, CHRU de Montpellier, 371, avenue du Doyen-Gaston Giraud, 34090 Montpellier, France
| | - E Jeziorski
- Département de pédiatrie générale, CHU de Montpellier, 371, avenue du Doyen-Gaston Giraud, 34090 Montpellier, France
| | - N Sirvent
- Département d'onco-hématologie pédiatrique, CHU de Montpellier, 371, avenue du Doyen-Gaston-Giraud, 34090 Montpellier, France
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Liu X, Li N, Wen C. Effect of pathological heterogeneity on shear wave elasticity imaging in the staging of deep venous thrombosis. PLoS One 2017; 12:e0179103. [PMID: 28614362 PMCID: PMC5470690 DOI: 10.1371/journal.pone.0179103] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 05/24/2017] [Indexed: 11/27/2022] Open
Abstract
Background We aimed to observe the relationship between the pathological components of a deep venous thrombus (DVT), which was divided into three parts, and the findings on quantitative ultrasonic shear wave elastography (SWE) to increase the accuracy of thrombus staging in a rabbit model. Methods A flow stenosis-induced vein thrombosis model was used, and the thrombus was divided into three parts (head, body and tail), which were associated with corresponding observation points. Elasticity was quantified in vivo using SWE over a 2-week period. A quantitative pathologic image analysis (QPIA) was performed to obtain the relative percentages of the components of the main clots. Results DVT maturity occurred at 2 weeks, and the elasticity of the whole thrombus and the three parts (head, body and tail) showed an increasing trend, with the Young's modulus values varying from 2.36 ± 0.41 kPa to 13.24 ± 1.71 kPa; 2.01 ± 0.28 kPa to 13.29 ± 1.48 kPa; 3.27 ± 0.57 kPa to 15.91 ± 2.05 kPa; and 1.79 ± 0.36 kPa to 10.51 ± 1.61 kPa, respectively. Significant increases occurred on different days for the different parts: the head showed significant increases on days 4 and 6; the body showed significant increases on days 4 and 7; and the tail showed significant increases on days 3 and 6. The QPIA showed that the thrombus composition changed dynamically as the thrombus matured, with the fibrin and calcium salt deposition gradually increasing and the red blood cells (RBCs) and platelet trabecula gradually decreasing. Significant changes were observed on days 4 and 7, which may represent the transition points for acute, sub-acute and chronic thrombi. Significant heterogeneity was observed between and within the thrombi. Conclusions Variations in the thrombus components were generally consistent between the SWE and QPIA. Days 4 and 7 after thrombus induction may represent the transition points for acute, sub-acute and chronic thrombi in rabbit models. A dynamic examination of the same part of the thrombus may be helpful for improving the sensitivity and reproducibility of SWE for DVT diagnosis and staging.
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Affiliation(s)
- Xiaona Liu
- Chinese PLA (People's Liberation Army) Medical School, Beijing, P.R. China
- Department of Ultrasound, Binzhou Medical University Hospital, Binzhou, Shandong, P.R. China
| | - Na Li
- Chinese PLA (People's Liberation Army) Medical School, Beijing, P.R. China
- Department of Auxiliary Diagnosis, The 463rd Hospital of Shenyang Military Region, Shenyang, Liaoning, P.R. China
| | - Chaoyang Wen
- Chinese PLA (People's Liberation Army) Medical School, Beijing, P.R. China
- Department of Ultrasound, The First Affiliated Hospital of Chinese PLA General Hospital, Beijing, P.R. China
- * E-mail:
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Aggarwal A, Bhalotra AR, Suresh V, Al-Qattan AR. Assessing the age of deep vein thrombus: A need for future perioperative medicine and anesthesia. Anesth Essays Res 2016; 10:1-2. [PMID: 26957680 PMCID: PMC4767089 DOI: 10.4103/0259-1162.167803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Affiliation(s)
- Anurag Aggarwal
- Department of Anesthesia and Critical Care, Al-Sabah Hospital, Ministry of Health, Kuwait. E-mail:
| | - Anju R Bhalotra
- Department of Anaesthesia and Intensive Care, Lok Nayak Hospital and Guru Nanak Eye Hospital, Maulana Azad Medical College, New Delhi, India
| | - Varun Suresh
- Department of Anesthesia and Critical Care, Al-Sabah Hospital, Ministry of Health, Kuwait. E-mail:
| | - Abdul Raheem Al-Qattan
- Department of Anesthesia and Critical Care, Al-Sabah Hospital, Ministry of Health, Kuwait. E-mail:
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Anvari A, Barr RG, Dhyani M, Samir AE. Clinical application of sonoelastography in thyroid, prostate, kidney, pancreas, and deep venous thrombosis. ACTA ACUST UNITED AC 2015; 40:709-22. [PMID: 25750099 DOI: 10.1007/s00261-015-0383-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This article reviews the clinical applications of current ultrasound elastography methods in non-hepatic conditions including thyroid nodules, prostate cancer, chronic kidney disease, solid renal lesions, pancreatic lesions, and deep vein thrombosis. Pathophysiology alters tissue mechanical properties via ultrastructural changes including fibrosis, increased cellularity, bleeding, and necrosis, creating a target biomarker, which can be imaged qualitatively or quantitatively with US elastography. US elastography methods can add information to conventional US methods and improve the diagnostic performance of conventional US in a range of disease processes.
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Affiliation(s)
- Arash Anvari
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
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Ariji Y, Nakayama M, Taguchi A, Gotoh A, Kise Y, Katsumata A, Kurita K, Ariji E. Intramuscular changes of soft and hard areas after low-level static contraction of the masseter muscle and the correlations with muscle hardness and increase in water content: evaluations with sonographic elastography and magnetic resonance imaging. Oral Surg Oral Med Oral Pathol Oral Radiol 2014; 116:354-61. [PMID: 23953421 DOI: 10.1016/j.oooo.2013.05.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 04/22/2013] [Accepted: 05/25/2013] [Indexed: 02/04/2023]
Abstract
OBJECTIVES To investigate the intramuscular changes on sonographic elastography (SE) after low-level static contraction of the masseter muscle, and to clarify the relationship with the total hardness and edematous change. STUDY DESIGN Ten healthy volunteers performed sustained bilateral biting at 20% of maximal voluntary contraction for 10 min. The SE and magnetic resonance (MR) scans of the masseter muscles were performed before, immediately after, and 10 min after exercise. The masseter muscle elasticity index (MEI) ratio, muscle thickness, and intramuscular soft and hard areas distribution were evaluated on SE images. The signal to noise ratio (SNR), indicating the water content, was measured on MR images. RESULTS The soft area ratio showed significant correlations with the water content expressed as SNR. The hard area ratio showed significant correlations with the total muscle hardness expressed as the MEI ratio. CONCLUSION Intramuscular soft and hard areas could be used both clinically and experimentally.
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Affiliation(s)
- Yoshiko Ariji
- Department of Oral and Maxillofacial Radiology, Aichi-Gakuin University School of Dentistry, Nagoya, Japan.
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Dharmarajah B, Sounderajah V, Rowland SP, Leen ELS, Davies AH. Aging techniques for deep vein thrombosis: a systematic review. Phlebology 2014; 30:77-84. [DOI: 10.1177/0268355514528691] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Deep vein thrombosis is common with an incidence of 1 in 1000. Acute thrombus removal for extensive proximal deep vein thrombosis using catheter-directed techniques highlights the need for accurate assessment of thrombus age. This systematic review summarises experimental and clinical evidence of imaging techniques for aging deep vein thrombosis. Ultrasound elastography and magnetic resonance imaging were highlighted as the most studied imaging modalities. Elastography was shown to distinguish between acute and chronic clots, despite demonstrating difficulty in accurate aging of clots older than 10 days in rat models. Elastography is noted as a feasible adjunct to current first-line imaging for deep vein thrombosis using duplex ultrasonography. Combinations of magnetic resonance imaging techniques can identify acute, sub-acute and chronic thrombi using endogenous contrast agents and provide objective standardisation of the diagnostic process, with reduced onus upon operator dependency. Further validation is required of these novel imaging techniques prior to clinical implementation for deep vein thrombosis aging.
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Affiliation(s)
- B Dharmarajah
- Academic Section of Vascular Surgery, Department of Surgery and Cancer, Imperial College London, London, UK
- Division of Experimental Medicine, Imperial College London, London, UK
| | - V Sounderajah
- Academic Section of Vascular Surgery, Department of Surgery and Cancer, Imperial College London, London, UK
| | - SP Rowland
- Academic Section of Vascular Surgery, Department of Surgery and Cancer, Imperial College London, London, UK
| | - ELS Leen
- Division of Experimental Medicine, Imperial College London, London, UK
| | - AH Davies
- Academic Section of Vascular Surgery, Department of Surgery and Cancer, Imperial College London, London, UK
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Sonographic elastography for assessing changes in masseter muscle elasticity after low-level static contraction. Oral Radiol 2013. [DOI: 10.1007/s11282-012-0119-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Wadajkar AS, Santimano S, Rahimi M, Yuan B, Banerjee S, Nguyen KT. Deep vein thrombosis: current status and nanotechnology advances. Biotechnol Adv 2012; 31:504-513. [PMID: 22940402 DOI: 10.1016/j.biotechadv.2012.08.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2012] [Revised: 08/13/2012] [Accepted: 08/14/2012] [Indexed: 12/12/2022]
Abstract
Deep vein thrombosis (DVT) affects up to 2 million people in the United States, and worldwide incidence is 70 to 113 cases per 100,000 per year. Mortality from DVT is often due to subsequent pulmonary embolism (PE). Precise diagnosis and treatment is thereby essential for the management of DVT. DVT is diagnosed by a thorough history and physical examination followed by laboratory and diagnostic tests. The choice of laboratory and diagnostic test is dependent on clinical pretest probability. Available laboratory and diagnostic techniques mainly involve D-dimer test, ultrasound, venography, and magnetic resonance imaging. The latter two diagnostic tools require high doses of contrast agents including either radioactive or toxic materials. The available treatment options include lifestyle modifications, mechanical compression, anticoagulant therapy, inferior vena cava filter, and thrombolysis/thrombolectomy. All of these medical and surgical treatments have serious side effects including improper clot clearance and increased risk of hemorrhage occurrence. Therefore, research in this field has recently focused on the development of non-invasive and accurate diagnostics, such as ultrasound enhanced techniques and molecular imaging methods, to assess thrombus location and its treatment course. The frontier of nanomedicine also shows high prospects in tackling DVT with efficient targeted drug delivery. This review describes the pathology of DVT along with successive medical problems such as PE and features a detailed listing of various diagnostic and therapeutic modalities that have been in use and are under development.
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Affiliation(s)
- Aniket S Wadajkar
- Department of Bioengineering, The University of Texas at Arlington, Arlington, TX 76019, USA
- Joint Biomedical Engineering Program between The University of Texas at Arlington and The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Sonia Santimano
- Department of Bioengineering, The University of Texas at Arlington, Arlington, TX 76019, USA
- Joint Biomedical Engineering Program between The University of Texas at Arlington and The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Maham Rahimi
- Department of Vascular Surgery, University of Cincinnati, OH 45267, USA
| | - Baohong Yuan
- Department of Bioengineering, The University of Texas at Arlington, Arlington, TX 76019, USA
- Joint Biomedical Engineering Program between The University of Texas at Arlington and The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Subhash Banerjee
- Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Kytai T Nguyen
- Department of Bioengineering, The University of Texas at Arlington, Arlington, TX 76019, USA
- Joint Biomedical Engineering Program between The University of Texas at Arlington and The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
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Deep vein thromboses in users of opioid drugs: incidence, prevalence, and risk factors. Br J Gen Pract 2012; 61:e781-6. [PMID: 22137414 DOI: 10.3399/bjgp11x613115] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
BACKGROUND Users of illicit opioids are at increased risk of hospital admission for deep vein thromboses (DVTs); however, the community prevalence, risk factors, and complications of DVTs in this group are poorly understood. AIM This study aimed to describe the prevalence of previous DVT for users of opioids in primary care; provide age- and sex-adjusted annual incidence rates of DVT; and explore factors associated with DVT, concordance with subsequent treatment, and complications. DESIGN A retrospective analysis of DVT prevalence and incidence, and analysis of risk factors for DVT using Poisson regression of incidence rates. METHOD A review of 734 patients in treatment for opioid addiction, who were registered to a single, specialised primary care practice in Middlesbrough, England. RESULTS The prevalence of previous DVT in users of opioids was 13.9% (95% confidence interval [CI] = 11.5 to 16.6) with an annual incidence rate of 3.2% (95% CI = 2.6 to 3.7). The incidence rate increased with age and for female users; an exploration of risk factors suggests that rising age, female sex, sex-worker status, and intravenous delivery all independently increase the risk of DVT. Concordance with treatment appeared reasonable and, compared with DVT in groups of people who do not use drugs, there was no evidence of increased risk of pulmonary embolism. Participants with previous DVT reported lower health and wellbeing scores. CONCLUSION Primary care providers should be aware of the considerably increased risk of DVT and its sequelae in users of intravenous drugs. Evidence for effective primary care prevention and the effective management of DVT complications is lacking; until this emerges, vigilance on the part of clinicians may help to minimise harm.
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Simultaneous MR Arteriography and Venography With Blood Pool Contrast Agent Detects Deep Venous Thrombosis in Suspected Arterial Disease. AJR Am J Roentgenol 2012; 198:1188-95. [DOI: 10.2214/ajr.11.7306] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Meissner MH, Gloviczki P, Comerota AJ, Dalsing MC, Eklof BG, Gillespie DL, Lohr JM, McLafferty RB, Murad MH, Padberg F, Pappas P, Raffetto JD, Wakefield TW. Early thrombus removal strategies for acute deep venous thrombosis: Clinical Practice Guidelines of the Society for Vascular Surgery and the American Venous Forum. J Vasc Surg 2012; 55:1449-62. [DOI: 10.1016/j.jvs.2011.12.081] [Citation(s) in RCA: 285] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Revised: 12/08/2011] [Accepted: 12/27/2011] [Indexed: 11/26/2022]
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Brodmann M, Gary T, Hafner F, Tiesenhausen K, Deutschmann H, Pilger E. Massive pulmonary embolism caused by internal iliac vein thrombosis with free-floating thrombus formation in the inferior vena cava. Ann Vasc Surg 2012; 26:420.e5-7. [PMID: 22285351 DOI: 10.1016/j.avsg.2011.07.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Revised: 07/07/2011] [Accepted: 07/17/2011] [Indexed: 10/14/2022]
Abstract
Nowadays, compression ultrasonography (CUS) is the gold standard for the routine diagnosis of deep venous thrombosis (DVT). The drawback of CUS is the low sensitivity concerning the diagnosis of isolated pelvic vein thrombosis, especially referring to isolated internal iliac vein and ovarian vein thromboses. Therefore, magnetic resonance (MR) venography has become a valuable alternative. We present the case of a 45-year-old female patient with a massive pulmonary embolism with the indication for thrombolytic therapy due to severe right ventricular overload. We were not able to detect a DVT in the lower limbs of this patient with CUS. However, further DVT workup by MR venography showed a free-floating thrombus formation originating from the right internal iliac veins into the inferior vena cava. Owing to the fact that this thrombus was free floating, surgical removal of the thrombus was scheduled and performed successfully. In some patients it might be important to look for so-called rare causes of pulmonary embolism, even when CUS of the lower limbs does not reveal any DVTs. The diagnostic procedure of choice for these patients seems to be MR phlebography, as iliac and pelvic veins can be evaluated without radiation exposure with this procedure.
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Affiliation(s)
- Marianne Brodmann
- Division of Angiology, Department of Medicine, Medical University Graz, Graz, Austria.
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21
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O’Sullivan GJ. Thrombolysis versus thrombectomy in acute deep vein thrombosis. Interv Cardiol 2011. [DOI: 10.2217/ica.11.66] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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van Langevelde K, Tan M, Srámek A, Huisman MV, de Roos A. Magnetic resonance imaging and computed tomography developments in imaging of venous thromboembolism. J Magn Reson Imaging 2011; 32:1302-12. [PMID: 21105136 DOI: 10.1002/jmri.22379] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Venous thromboembolism (VTE) is a disease that causes high morbidity and mortality in the population. At present the first-line imaging test for a suspected pulmonary embolism (PE) is computed tomography (CT) pulmonary angiography, and ultrasonography is widely used for the diagnosis of deep-vein thrombosis (DVT). Although these modalities are proven to be safe and accurate, unresolved issues remain, such as whether CT scanning in patients with a suspected PE should be extended to the legs. Another issue is the diagnosis of recurrent DVT. Magnetic resonance imaging (MRI) offers a number of advantages in the imaging of VTE. Recent developments of scanning protocols with shorter acquisition times, sometimes complemented by navigator gating or making use of endogenous contrast, offer new perspectives for the use of MRI. This review provides an overview of state of the art MRI techniques for the diagnosis of PE and DVT. Furthermore, the use of new contrast agents such as fibrin labeling to detect thrombi are addressed.
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Affiliation(s)
- Kirsten van Langevelde
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands.
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Saha P, Humphries J, Modarai B, Mattock K, Waltham M, Evans CE, Ahmad A, Patel AS, Premaratne S, Lyons OTA, Smith A. Leukocytes and the natural history of deep vein thrombosis: current concepts and future directions. Arterioscler Thromb Vasc Biol 2011; 31:506-12. [PMID: 21325673 PMCID: PMC3079895 DOI: 10.1161/atvbaha.110.213405] [Citation(s) in RCA: 131] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2010] [Accepted: 12/21/2010] [Indexed: 12/24/2022]
Abstract
Observational studies have shown that inflammatory cells accumulate within the thrombus and surrounding vein wall during the natural history of venous thrombosis. More recent studies have begun to unravel the mechanisms that regulate this interaction and have confirmed that thrombosis and inflammation are intimately linked. This review outlines our current knowledge of the complex relationship between inflammatory cell activity and venous thrombosis and highlights new areas of research in this field. A better understanding of this relationship could lead to the development of novel therapeutic targets that inhibit thrombus formation or promote its resolution.
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Affiliation(s)
- Prakash Saha
- Kings College London, British Heart Foundation Centre of Research Excellence and National Institute for Health Research Biomedical Research Centre at Kings Health Partners, Academic Department of Surgery, St Thomas' Hospital, London, United Kingdom
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O’Sullivan GJ. The Role of Interventional Radiology in the Management of Deep Venous Thrombosis: Advanced Therapy. Cardiovasc Intervent Radiol 2010; 34:445-61. [DOI: 10.1007/s00270-010-9977-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2010] [Accepted: 08/09/2010] [Indexed: 02/03/2023]
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Ariji Y, Katsumata A, Hiraiwa Y, Izumi M, Iida Y, Goto M, Sakuma S, Ogi N, Kurita K, Ariji E. Use of sonographic elastography of the masseter muscles for optimizing massage pressure: a preliminary study. J Oral Rehabil 2009; 36:627-35. [PMID: 19602100 DOI: 10.1111/j.1365-2842.2009.01977.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
To examine the stiffness of the masseter muscle using sonographic elastography and to investigate its relationship with the most comfortable massage pressure in the healthy volunteers. In 16 healthy volunteers (10 men and 6 women), the Masseter Stiffness Index (MSI) was measured using EUB-7000 real-time tissue elastography. They underwent massages at three kinds of pressures using the Oral Rehabilitation Robot (WAO-1). A subjective evaluation regarding the comfort of each massage was recorded on the visual analogue scale. Elastography was also performed in two patients with temporomandibular joint dysfunction with the myofascial pain. The mean MSI of the right and left muscles in the healthy volunteers were 0.85 +/- 0.44 and 0.74 +/- 0.35 respectively. There was no significant difference between the right and left MSI in the healthy volunteers. The MSI was related to massage pressure at which the healthy men felt most comfortable. The two temporomandibular disorder patients had a large laterality in the MSI. The MSI was related to the most comfortable massage pressure in the healthy men. The MSI can be one index for determining the massage pressure.
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Affiliation(s)
- Y Ariji
- Department of Oral and Maxillofacial Radiology, Aichi-Gakuin University School of Dentistry, Chikusa-ku, Nagoya, Japan.
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Bierig SM, Jones A. Accuracy and Cost Comparison of Ultrasound Versus Alternative Imaging Modalities, Including CT, MR, PET, and Angiography. JOURNAL OF DIAGNOSTIC MEDICAL SONOGRAPHY 2009. [DOI: 10.1177/8756479309336240] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Ultrasound (US) has become widely used in clinical medicine for the diagnosis of a variety of disease processes. The unique ability of US to provide accurate information through an efficacious, painless, portable, and nonionizing method has expanded its role and application in diverse medical settings. Given the current economic environment and the related interest in creating the greatest value for health care expenditures, US has been evaluated to compare its clinical accuracy/efficacy and cost-effectiveness versus other imaging modalities. The following literature review reports the results of research studies aimed at comparing the accuracy/efficacy and cost of US versus alternative imaging modalities, including magnetic resonance imaging, computed tomography, contrast angiography, and single-photon emission computed tomography.
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Furlan JC, Fehlings MG. Cardiovascular complications after acute spinal cord injury: pathophysiology, diagnosis, and management. Neurosurg Focus 2009; 25:E13. [PMID: 18980473 DOI: 10.3171/foc.2008.25.11.e13] [Citation(s) in RCA: 174] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Cardiovascular complications in the acute stage following traumatic spinal cord injury (SCI) require prompt medical attention to avoid neurological compromise, morbidity, and death. In this review, the authors summarize the neural regulation of the cardiovascular system as well as the pathophysiology, diagnosis, and management of major cardiovascular complications that can occur following acute (up to 30 days) traumatic SCI. Hypotension (both supine and orthostatic), autonomic dysreflexia, and cardiac arrhythmias (including persistent bradycardia) are attributed to the loss of supraspinal control of the sympathetic nervous system that commonly occurs in patients with severe spinal cord lesions at T-6 or higher. Current evidence-based guidelines recommend: 1) monitoring of cardiac and hemodynamic parameters in the acute phase of SCI; 2) maintenance of a minimum mean arterial blood pressure of 85 mm Hg during the hyperacute phase (1 week after SCI); 3) timely detection and appropriate treatment of neurogenic shock and cardiac arrhythmias; and 4) immediate and adequate treatment of episodes of acute autonomic dysreflexia. In addition to these forms of cardiovascular dysfunction, individuals with acute SCIs are at high risk for deep venous thrombosis (DVT) and pulmonary embolism due to loss of mobility and, potentially, altered fibrinolytic activity, abnormal platelet function, and impaired circadian variations of hemostatic and fibrinolytic parameters. Current evidence supports a recommendation for thromboprophylaxis using mechanical methods and anticoagulants during the acute stage up to 3 months following SCI, depending on the severity and level of injury. Low-molecular-weight heparin is the first choice for anticoagulant prophylaxis in patients with acute SCI. Although there is insufficient evidence to recommend (or refute) the use of screening tests for DVT in asymptomatic adults with acute SCI, this strategy may detect asymptomatic DVT in at least 9.4% of individuals who undergo thromboprophylaxis using lowmolecular- weight heparin. Indications and treatment of DVT and acute pulmonary embolism are well established and are summarized in this review. Recognition of cardiovascular complications after acute SCI is essential to minimize adverse outcomes and to optimize recovery.
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Affiliation(s)
- Julio C Furlan
- Division of Genetics and Development, Toronto Western Research Institute, University Health Network, Ontario, Canada
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The Role of Venoscintigraphy in the Image Diagnostics of Lower Limb Venous System. POLISH JOURNAL OF SURGERY 2009. [DOI: 10.2478/v10035-009-0032-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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