57 cases of portal vein thrombosis detected by ultrasonography were analized. The results were as follows: 1.Most common cause was hepatocellular carcinoma, showing 49 out of 57 cases(86%). 2. Sonographic findings revealedechogenic thrombus in the dilated portal vein. Echogenecity of thrombus was similar to the surrounding liverparenchyma, Thrombus was mainly located in the intrahepatic branch and main portal vein. 3. The location ofthrombus in hepatocellular carcinoma was related to the location of tumor, and frequently extended to the mainportal vein(68.9%). Incidence of thrombosis in hepatocellular carcinoma revealed 49 out of 157 cases, butprospective study showed 42 out of 84 cases(50%). Thrombosis was more common in large sized ill-defined diffuseinfiltrative hepatocellular carcinoma. 4. CT(only 15 cases analyzed) findings revealed low density in the portalvein in all the cases and periportal enhancement in 10 cases on post-enhanced scan. 5. Collateral circulationswere largely detected at the porta hepatis and gallblader fossa. The detection rate was lower on theultrasonography than on the CT or angiography.
Angiography ; Carcinoma, Hepatocellular ; Incidence ; Portal Vein ; Thrombosis ; Ultrasonography ; Venous Thrombosis

With the advent of duplex ultrasound imaging as a diagnostic tool of venous disease, radionuclide venography (RNV) is losing its popularity as a primary diagnostic method of venous disease. PURPOSE: We attempted to reassess the diagnostic role of RNV for the lower extremity venous disease as a primary and an adjuvant diagnostic method. METHODS: Radionuclide venography (Technetium- 99m-RBC venography) and duplex scan (DS) were compared in 80 limbs of 80 patients having clinically suspcious deep venous disease of lower extremities. The criteria for positive RNV included 1) nonfilling of deep vein, 2) abnormal venous collaterals, 3) slow ascending of isotope, and 4) residual hot spot. Abnormal RNV findings were compared with DS findings in 3 groups of patients based on DS findings. RESULTS: DS results can be divided as deep vein thrombosis (DVT) (n=46), chronic venous insufficiency (CVI) (n=18), and nonspecific (n=16). The concordance rates between RNV and DS were 79% in DVT group and 50% in CVI group. In 6 patients (7.5%) with negative or equivocal DS with positive RNV results, we could find clinically relevant findings of CVI on those limbs. CONCLUSION: RNV seemed to have an acceptable role in the diagnosis of leg venous thrombosis as an adjuvant diagnostic method with DS, especially for the patients showing equivocal DS results.
Diagnosis ; Extremities ; Humans ; Leg* ; Lower Extremity ; Phlebography* ; Ultrasonography ; Veins ; Venous Insufficiency ; Venous Thrombosis

PURPOSE: Venous thromboembolism (VTE) is a common life-threatening illness with significant morbidity and mortality rates. In recent years, the incidence of VTE has gradually increased in Korea. In this study, we evaluated the current trends in the management of acute deep vein thrombosis (DVT) in Korea. MATERIALS AND METHODS: A 20-item questionnaire was prepared and sent to 48 members of the Korean Society for Vascular Surgery. Each member worked in a different hospital. Twenty-two members participated in this study. RESULTS: The vascular surgery departments were primarily responsible for managing DVT. Ultrasound and computed tomography (CT) venography were chosen as the most common initial diagnostic tools. Eighty-two percent of participants routinely used the coagulation factor assay. Thrombolysis and inferior vena cava (IVC) filter insertion were performed mainly in the radiology departments. Seventy-seven percent of participants performed thrombolysis only if the thrombus age was less than 21 days. During thrombolysis, IVC filter was routinely inserted by 50% of respondents and removed within 14 days by 64% of respondents. Nearly all participants followed the 2012 American College of Chest Physicians guidelines for anticoagulation therapy. CONCLUSION: The majority of Korean vascular surgeons followed the guidelines. However, CT was frequently used. Thrombolysis and IVC filter insertion were more frequently performed than recommended by the guidelines.
Blood Coagulation Factors ; Surveys and Questionnaires ; Incidence ; Korea ; Mortality ; Phlebography ; Thorax ; Thrombosis ; Ultrasonography ; Veins ; Vena Cava, Inferior ; Venous Thromboembolism ; Venous Thrombosis*

Internal jugular vein (IJV) thrombosis is a form of deep vein thrombosis that has a potentially fatal outcome associated with its intracranial propagation. Computed tomography and ultrasonography are useful diagnostic tools. We report a case of IJV thrombosis associated with lymphoma that was detected by carotid ultrasonography and had disappeared in follow up ultrasonography.
Fatal Outcome ; Follow-Up Studies* ; Jugular Veins* ; Lymphoma* ; Thrombosis* ; Ultrasonography* ; Venous Thrombosis

PURPOSE: To analyse Doppler findings in patients with chronic venous insufficiency, and evaluate the usefulness of color Doppler ultrasonography. MATERIALS AND METHODS: Thirty-seven limbs in 29 patients were evaluated with color Doppler ultrasound for suspected chronic venous insufficiency. To determine luminal patency and valvular competence, the venous system was examined; more than 1 sec of reflux flow during Valsalva maneuver and after release of distal compression in the popliteal vein indicated incompetence. RESULTS: Venous insufficiency was seen in 30 cases (81%), and was Superficial in 14 (38%), deep in eight (21.5%), and combined in eight (21.5%). In seven limbs (19%), veins were normal. Six cases of insufficiency, four of which were deep, were combined with deep venous thrombosis. CONCLUSION: In cases of chronic venous insufficiency, color Doppler ultrasound is useful for defining the exact site of venous incompetence and evaluating venous luminal patency.
Extremities ; Humans ; Mental Competency ; Phenobarbital ; Popliteal Vein ; Ultrasonography* ; Ultrasonography, Doppler, Color ; Valsalva Maneuver ; Veins ; Venous Insufficiency* ; Venous Thrombosis

Dural sinus thrombosis (DST), or cerebral venous thrombosis, is an uncommon cause of stroke. It has a variable presentation, and the symptoms and signs can be non-specific. The diagnosis of DST can be difficult to make and is often delayed or missed. Computed tomography venography or magnetic resonance venography are the typical imaging modalities used to diagnose DST. However, computed tomography venography and magnetic resonance venography both have limitation for emergency department patients. In this article, we report the use of point-of-care ultrasound to facilitate the diagnosis of DST.
Diagnosis ; Diagnostic Imaging ; Emergencies ; Emergency Service, Hospital ; Humans ; Phlebography ; Point-of-Care Systems* ; Sinus Thrombosis, Intracranial* ; Stroke ; Thrombosis ; Ultrasonography* ; Venous Thrombosis

We experienced a case of deep vein thrombosis after spine surgery in the prone position with a central venous catheter (CVC). Posterior lumbar interbody fusion was performed on a 73-year-old female patient who was diagnosed with spinal stenosis. Accordingly, in the operation room under general anesthesia, two-lumen CVC were inserted into the left subclavian vein. The surgery was performed in the prone position with a Wilson frame. On the next day, there was a sudden occurrence of severe edema in the patient's left arm. By ultrasonography and computed tomography scanning, extensive deep vein thrombosis was observed in the left subclavian vein. The existence of a factor affecting blood flow such as the prone position may increase the risk of thrombus formation. Therefore, careful perioperative evaluation should be implemented.
Aged ; Anesthesia, General ; Arm ; Catheterization* ; Catheters* ; Central Venous Catheters ; Edema ; Female ; Humans ; Prone Position* ; Spinal Stenosis ; Spine* ; Subclavian Vein ; Thrombosis ; Ultrasonography ; Upper Extremity Deep Vein Thrombosis ; Venous Thrombosis*

This report describes the color and pulsed Doppler US findings of penile Mondor's disease. The pulsed Doppler US findings of penile Mondor's disease have not been previously published, so we report here for the first time on the cavernosal arterial flow signal pattern of penile Mondor's disease. Penile Mondor's disease is rare disease that's characterized by thrombosis in the dorsal vein of the penis. The previous reports on penile Mondor's disease are concerned with the color Doppler US finding without the flow signals in this area, but these findings are insufficient to understand the hemodynamics in penile Mondor's disease. We report for the first time on a cavernosal artery flow signal pattern of low peak systolic velocity and high-resistance.
Adult ; Blood Flow Velocity ; Humans ; Lymphangitis/*ultrasonography ; Male ; Penile Diseases/*ultrasonography ; Penis/*blood supply/*ultrasonography ; Ultrasonography, Doppler, Color ; Ultrasonography, Doppler, Pulsed ; Venous Thrombosis/*ultrasonography

OBJECTIVE: Venous thromboembolism (VTE) after spinal surgery affects a patients' postoperative recovery and also carries a mortality risk. Some studies recommended chemical prophylaxis for high-risk patients and for those after complex spinal surgeries. However, chemoprophylaxis for VTE in spinal surgery is underemployed and there is no agreement on the use of VTE prophylaxis in spinal surgery. The aim of this study was to document the incidence of VTE after an elective instrumental spinal surgery, among those receiving preoperative chemoprophylaxis as compared with patients who did not receive it. METHODS: This study was carried out on eighty-nine patients allocated randomly to receive either low molecular weight heparin (LMWH) or no prophylaxis before elective instrumental spinal surgery. All patients received postoperative compression stockings. A compression Doppler ultrasonography was performed for all patients to detect postoperative deep vein thrombosis. In addition, further imaging studies were performed for patients suspected of VTE. RESULTS: Three (3.3%) patients were diagnosed with VTE. One of them had received preoperative chemoprophylaxis. There were no significant difference in incidence of VTE between the two groups (p>0.95; 95% confidence interval, 0.06-8.7). Laterality of gender and postsurgical recumbence duration were all independent predictors of VTE (p=0.01 and p<0.001, respectively). CONCLUSION: The difference in the incidence of thromboembolic complications between the two groups was not significant. Moreover, we found that preoperative prophylactic LMWH injection has no major bleeding complications altering postoperative course; still, the issue concerning the initiation time of chemoprophylaxis in spinal surgery remains unclear.
Chemoprevention* ; Hemorrhage ; Heparin, Low-Molecular-Weight ; Humans ; Incidence* ; Mortality ; Pulmonary Embolism ; Stockings, Compression ; Ultrasonography, Doppler ; Venous Thromboembolism ; Venous Thrombosis

Portal vein thrombosis complicating pregnancy is a rare occurrence. The etiology of portal vein thrombosis is highly diverse. A 31-year-old multigravida was diagnosed with acute portal vein thrombosis at 12 weeks of gestation by ultrasound examination. She had epigastric and left upper quadrant pain, but there was no significant medical or surgical illness in the past. Laboratory studies showed no evidence of a thrombophilia. She was managed with anticoagulants and labor was induced at 38 weeks because of premature rupture of membranes. She delivered a healthy neonate without any complications. It seems that the cause of this thrombotic event was the hypercoagulable state of pregnancy.
Adult ; Anticoagulants ; Humans ; Infant, Newborn ; Membranes ; Portal Vein* ; Pregnancy* ; Rupture ; Thrombophilia ; Ultrasonography ; Venous Thrombosis*