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Journal of Medical Ultrasonics

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https://www.readbyqxmd.com/read/29774429/the-utility-of-superb-microvascular-imaging-for-the-detection-of-deep-vein-thrombosis
#1
Yuta Hagiwara, Rie Sasaki, Takahiro Shimizu, Kaima Soga, Chihiro Hatada, Motoki Miyauchi, Takanori Okamura, Masaru Sakurai, Hisanao Akiyama, Yasuhiro Hasegawa
Superb microvascular imaging (SMI) reduces motion artifacts significantly and allows visualization of low-velocity blood flow in vessels; thus, thrombi are clearly demonstrated compared to conventional B-mode and color Doppler imaging. Ultrasonographic images of the lower extremities of a 69-year-old woman with acute ischemic stroke complicated with deep vein thrombosis (DVT) are presented. Because SMI allows visualization of low-velocity blood flow, echo contrast between the thrombus and the surrounding flow makes it possible to clearly visualize the thrombus...
May 17, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29721640/assessment-of-the-renal-collecting-system-using-a-pocket-sized-ultrasound-device
#2
Toru Kameda, Kumiko Uebayashi, Kazuko Wagai, Fukiko Kawai, Nobuyuki Taniguchi
PURPOSE: To assess the performance of a pocket-sized ultrasound device (PUD) for evaluating dilatation of the renal collecting system with high-end ultrasound devices (HUDs) as a reference standard. METHODS: One sonographer examined both kidneys using a PUD to evaluate dilatation of the collecting system. The grading of the dilatation ranged from 0 to 4. Immediately after the examination, another sonographer blinded to the previous results performed a formal examination with a HUD...
May 2, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29704082/flexor-pollicis-longus-tendon-rupture-by-sandwiched-underlying-volar-locking-plate-and-distal-radius
#3
Takuya Uemura, Tadashi Okano, Ema Onode, Takuya Yokoi, Kosuke Shintani, Mitsuhiro Okada, Hiroaki Nakamura
Flexor pollicis longus (FPL) tendon rupture is a major complication of volar locking plate fixation for distal radius fractures. The tendon rupture is usually caused by friction between the distal edge of the plate and the FPL tendon, and has been well detected recently with ultrasonography. Rarely, the volar locking plate itself entraps the FPL tendon, leading to its rupture. A 63-year-old man was consistently unable to flex his right thumb after previous surgery for a distal radius fracture at another hospital...
April 27, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29671146/validation-trial-for-efficacy-of-ultrasonographic-measurement-method-to-predict-ascitic-volume-using-virtual-ultrasonography
#4
Masashi Hirooka, Yohei Koizumi, Yusuke Imai, Atsushi Yukimoto, Takao Watanabe, Osamu Yoshida, Masanori Abe, Yoichi Hiasa
PURPOSE: The aim of this study was to clarify whether ultrasound quantitative methods were positively correlated with volume of ascites evaluated by whole abdominopelvic CT. METHODS: Sixty-eight patients with cirrhotic ascites were retrospectively analyzed. First, to confirm that virtual ultrasonography (VUS) is an alternative method to conventional ultrasound, 22 patients underwent both conventional ultrasonography and VUS. Second, the efficacy of US quantitative methods (3-point method, 4-point method, 5-point method, and Matsumoto's method) was confirmed by VUS in 68 patients...
April 18, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29637402/atypically-presenting-kaposiform-hemangioendothelioma-of-the-knee-ultrasound-findings
#5
Iclal Erdem Toslak, Matthew Stegman, Michael P Reiter, Güliz A Barkan, Dariusz Borys, Jennifer E Lim-Dunham
Kaposiform hemangioendothelioma (KHE) is a rare vascular tumor of early childhood and infancy. Kasabach-Merritt phenomenon, a common complication of KHE, is characterized by life-threatening thrombocytopenia, hemolytic anemia, and consumption coagulopathy. There may be atypical cases that do not present with Kasabach-Merritt phenomenon and do have atypical imaging findings. Knowledge of atypical imaging features may assist radiologists in identifying KHE. In this report, we present a 4-year-old case of KHE with atypical ultrasound findings...
April 10, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29616359/liver-abscess-due-to-fusobacterium-species-detected-on-ultrasonography-a-case-report
#6
Vasanthapriya Subramaniyam, Akiko Saito, Katsutoshi Tokushige
An oral infection harboring Fusobacterium species can gain entrance to the liver via hematogenous spread in the form of septic embolus, and can thereby cause abscesses. Such spread, described as Lemierre syndrome, is life threatening. We present such a case history of a man in his mid-40s, who presented with infection and Fusobacterium liver abscess with an acute fulminant disease course. The initial diagnosis was arrived at by ultrasound imaging and blood investigations. He was treated with antibiotics, ultrasound-guided liver abscess drainage, and extraction of the infected molar tooth...
April 3, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29536281/there-is-a-significant-relationship-between-morning-blood-pressure-surge-and-increased-abdominal-aortic-intima-media-thickness-in-hypertensive-patients
#7
Ayse Selcan Koc, Ferıde Fatma Gorgulu, Yurdaer Donmez, Yahya Kemal Icen
PURPOSE: There are limited data about increased aortic intima-media thickness (A-IMT) in the presence of subclinical target organ damage in hypertensive (HT) patients. In this study, we aimed to determine the frequency of increased A-IMT, the parameters determining increased A-IMT, and the relationship between increased A-IMT and other vascular IMT measurements. MATERIALS AND METHODS: We prospectively included 265 patients (mean age 54.1 ± 10.6 years, male/female 91/174) with essential HT...
March 13, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29536280/a-novel-ultrasonic-method-for-evaluation-of-blood-clotting-parameters
#8
Vacis Tatarunas, Algirdas Voleisis, Reimondas Sliteris, Rymantas Kazys, Liudas Mazeika, Vaiva Lesauskaite
PURPOSE: For long time, blood clot retraction was measured only by thromboelastographic or platelet contractile force measurement techniques. The purpose of the present study was development of a novel ultrasonic method based on simultaneous monitoring of variations in the ultrasound velocity and the frequency spectrum of the signal propagating in clotting blood and its application for automatic evaluation of blood clotting parameters. METHODS: Simultaneous measurement of ultrasound velocity and variations in the frequency spectrum of wideband ultrasonic signals in clotting blood samples was performed...
March 13, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29524009/reproducibility-of-acquiring-ultrasonographic-infant-hip-images-by-the-graf-method-after-an-infant-hip-ultrasound-training-course
#9
Yasuhiro Shirai, Kenjiro Wakabayashi, Ikuo Wada, Hideyuki Goto, Yoshino Ueki, Atsushi Tsuchiya, Yoshiaki Tsuboi, Myongsu Ha, Takanobu Otsuka
PURPOSE: The objective screening of infant hips using ultrasonography (Graf method) is gaining favor in the diagnosis of developmental dysplasia of the hip in Japan. However, the accuracy of the Graf method is dependent on the examiner's experience and technique. The purpose of this study was to investigate the reproducibility of acquiring ultrasonic hip images and their evaluation after examiners attended an infant hip ultrasound training course. MATERIALS AND METHODS: Ultrasonic images of 70 hips of 35 newborns who were screened by ultrasonography using the Graf method, were evaluated...
March 9, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29470686/a-case-of-stage-ia-pancreatic-ductal-adenocarcinoma-accompanied-with-focal-pancreatitis-demonstrated-by-contrast-enhanced-ultrasonography
#10
Junko Fukuda, Sachiko Tanaka, Nobuko Ishida, Tatsuya Ioka, Kenji Ikezawa, Rena Takakura, Miho Nakao, Kazuyoshi Ohkawa, Kazuhiro Katayama, Shigenori Nagata
A patient with slight dilatation of the main pancreatic duct was followed-up with ultrasonography every 6 months as a high-risk case of pancreatic cancer. Twelve years later, a faint hypoechoic area 13 mm in diameter was first detected on the body of the pancreas. Contrast-enhanced ultrasonography revealed a well-demarcated hypoenhanced area 8 mm in diameter and a hyperenhanced area with an unclear margin. The former was suspected to be a small pancreatic cancer lesion, and the latter to be focal pancreatitis accompanying cancer...
February 22, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29470685/the-effect-of-halogen-light-stimulation-on-duration-of-ultrasound-parameters-of-biophysical-profile-a-randomized-clinical-trial
#11
Mohammad Ghasem Hanafi, Aliakbar Sahraeizadeh
INTRODUCTION: The objective is to assess if fetal halogen light stimulation can reduce the time needed to obtain a normal biophysical profile (BPP). METHODS: Patients scheduled for a BPP and who satisfied the inclusion criteria were prospectively randomized to halogen light stimulation and no stimulation groups. The study group was exposed to handheld halogen light for 10 s whenever fetal breathing, movement, or tone was absent through the first 5 min of BPP. The time required to achieve complete BPP score was recorded...
February 22, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29560579/the-state-of-ultrasound-technology-in-the-diagnosis-and-treatment-of-liver-diseases-now-and-in-the-future
#12
EDITORIAL
Yasuharu Imai
No abstract text is available yet for this article.
April 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29468491/prenatal-diagnosis-of-mediastinal-neurenteric-cyst-a-case-report-and-review-of-the-literature
#13
Ali Çay, İbrahim Aydoğdu, Semih Lütfü Mirapoglu, Hüseyin Toprak
Neurenteric cyst is a very rare developmental anomaly. Prenatal diagnosis of mediastinal neurenteric cysts has been reported rarely. We present a case of neurenteric cyst associated with vertebral anomalies diagnosed by prenatal ultrasonography at 31 weeks of gestation, which was treated successfully in the early neonatal period. In addition, we searched the English literature for all cases of mediastinal neurenteric cyst diagnosed in the prenatal period reported to date. We found that only 17 cases were reported previously...
February 21, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29464469/ultrasonographic-images-of-the-hand-in-a-case-with-early-eosinophilic-fasciitis
#14
Ing-Jeng Chen, Mei-Ting Wang, Ke-Vin Chang, Huey-Wen Liang
Eosinophilic fasciitis (EF), a rare rheumatic disease, usually affects the limbs symmetrically and generally spares the hands and feet. Cases of unilateral hand involvement are rarely reported. Here, we report such a rare case. Ultrasonography demonstrated thickening of the overlying skin and subcutaneous tissue, peripheral deep fascia, myositis of lumbrical muscles and adductor pollicis muscle, and edema surrounding flexor digitorum tendons. It reminds us that EF should be considered in the differential diagnosis of unilateral painful hand swelling despite being uncommon...
February 20, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29464468/elderly-fitz-hugh-curtis-syndrome-observed-with-superb-microvascular-imaging-system
#15
Tomotaka Yazaki, Shuichi Sato, Hiroshi Tobita, Kazuki Isoda, Tatsuya Miyake, Yoshikazu Kinoshita
Fitz-Hugh-Curtis syndrome (FHCS) is defined as inflammation on the surface of the liver following sexually transmitted chlamydia infection. We successfully observed the microvascular structure of the inflamed portion between the abdominal wall and surface of the liver in an elderly patient with FHCS using a superb microvascular imaging (SMI) system, a new technology developed for observing minute vascular flow. An 80-year-old Japanese female with right dorsal to lateral abdominal pain and fever came to our hospital...
February 20, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29453675/evaluation-of-carotid-artery-elasticity-in-patients-with-uremia-by-echo-tracking
#16
Hong Liang, Dawei Wang, Guoying Che, Yanxin Su
PURPOSE: The purpose of this study was to compare the carotid artery wall elasticity between patients with uremia and controls using echo tracking (ET). METHODS: Ninety-three patients with uremia and 35 control subjects (Group A) were enrolled in this study. In the ET mode, the carotid artery elasticity parameters including stiffness index (β), pressure-strain elasticity modulus (EP), arterial compliance (AC), and one-point pulse wave velocity (PWVβ) were measured, and carotid intima-media thickness (IMT) was measured with B-mode ultrasonography...
February 16, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29453674/contrast-enhanced-ultrasonography-of-post-interventional-hematoma-the-bleeding-mushroom-is-growing-inside
#17
Francesca Di Vece, Paola Tombesi, Lara Bianchi, Matteo Bertini, Sergio Sartori
Catheter ablation is an effective treatment in patients with symptomatic atrial fibrillation. Complications are infrequent and usually resolve with minimal or no intervention, but active bleeding due to arterial injury during the vascular access can sometimes represent a life-threatening complication. Contrast-enhanced computed tomography is the standard technique to detect active bleeding, but it may not be immediately available. We report a case of iatrogenic hemorrhage after catheter ablation, in which contrast-enhanced ultrasonography played a decisive role in the recognition of active arterial bleeding due to injury to the right common femoral artery...
February 16, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29411183/renal-shear-wave-elastography-for-the-assessment-of-nephron-hypertrophy-a-cross-sectional-study-in-chronic-kidney-disease
#18
Takuji Iyama, Tomoaki Takata, Masahiko Koda, Satoko Fukuda, Shotaro Hoi, Yukari Mae, Takeaki Fukui, Chishio Munemura, Hajime Isomoto
PURPOSE: To investigate the association of renal elasticity to microscopic findings of nephron hypertrophy and nephrosclerosis. METHODS: Patients who underwent renal biopsy were enrolled. Renal elasticity was measured by acoustic radiation force impulse, and nephron size (glomerular volume, non-sclerotic glomerular density, and mean profile tubular area) and nephrosclerosis (globally sclerotic glomeruli and interstitial fibrosis) were estimated. Nephron hypertrophy was indicated by larger glomerular volume, larger tubular area, and lower non-sclerotic glomerular density...
February 6, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29396737/prenatal-diagnosis-of-funisitis-two-case-reports
#19
Daisuke Katsura, Yuichiro Takahashi, Shigenori Iwagaki, Rika Chiaki, Kazuhiko Asai, Masako Koike, Shunsuke Yasumi, Madoka Furuhashi, Akira Hara, Hitoshi Iwata
Acute funisitis is characterized by the infiltration of fetal neutrophils from the umbilical vessels into Wharton's jelly and presents as fetal inflammation. However, no reports about its prenatal diagnosis using ultrasonography have been published. We encountered one case of oligohydramnios at 26 weeks and another case of threatened premature delivery at 27 weeks of gestation with ultrasonographic findings of non-uniform thickening of Wharton's jelly, a heterogeneous internal echo, and a high echoic line of the umbilical vessel wall...
February 2, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29388010/usefulness-of-acceleration-time-ratio-in-diagnosis-of-internal-carotid-artery-origin-stenosis
#20
Takahito Nishihira, Hidehiro Takekawa, Keisuke Suzuki, Ayano Suzuki, Yuka Tsukahara, Kentaro Iizuka, Haruki Igarashi, Akio Iwasaki, Madoka Okamura, Koichi Hirata
PURPOSE: The acceleration time (AcT) ratio of the internal carotid artery (ICA) is increased in ICA stenosis. However, there are few reports that have directly compared the AcT ratio to digital subtraction angiography (DSA) findings. METHODS: We evaluated 177 vessels with DSA and carotid artery ultrasonography. The AcT ratio was calculated as AcT of the ICA (ICA-AcT)/AcT of the ipsilateral common carotid artery (CCA). We evaluated the correlation of DSA-NASCET stenosis with the origin of the ICA or the peak systolic velocity (ICApsv) in the stenotic region, ICApsv/peak systolic velocity of the CCA (CCApsv), ICA-AcT, and AcT ratio...
January 31, 2018: Journal of Medical Ultrasonics
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