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Hazel Raphael D - - 2010
Ionizing radiation produces a distinctive pattern of bistranded clustered lesions in DNA. A relatively low number of clustered lesions may be lethal to cells when compared to a larger number of single lesions. Enzyme cleavage experiments suggest that the orientation of bistranded lesions causes differential recognition and removal of these ...
Scioscia Marco - - 2011
Prenatal diagnosis of a true knot of the umbilical cord is often an incidental observation at ultrasound with a difficult differential diagnosis between true and false knots. Furthermore, little is known about the optimal management of these cases. We report the importance of color Doppler and four-dimensional ultrasound for the ...
Nakamura K - - 2010
Contrast-enhanced ultrasonography with perflubutane microbubbles improves the diagnostic accuracy to differentiate benign and malignant focal liver lesions in dogs. Perflubutane microbubbles-enhanced ultrasonography is useful for differentiation of benign from malignant focal splenic lesions in dogs. Twenty-nine clinical dogs with single or multiple focal splenic lesions detected by conventional ultrasonography. Prospective ...
Kang Doo Kyoung - - 2011
To compare the diagnostic performance of computerised quantification with visual assessment for the detection of significant coronary stenosis using MDCT, and to determine the impact of plaque composition on diagnostic procedure. We retrospectively evaluated 1564 coronary segments of 127 patients who underwent 64-slice MDCT and quantitative coronary angiography (QCA). The ...
Ooi Chin-Chin - - 2010
The purpose of this study was to assess the diagnostic accuracy of our early experience with contrast-enhanced ultrasound (CEUS) in the characterisation of focal liver lesions (FLLs) using histopathology, contrast-enhanced computed tomography (CT), magnetic resonance imaging (MRI) or other imaging follow-up as the standard of reference. Seventy-three patients with 82 ...
Wortsman Ximena - - 2010
Diagnosis of pilomatrixomas may be difficult because they can mimic other clinical conditions. Color Doppler ultrasound had been proven useful in the study of localized lesions of the skin and can both define lesion morphology and determine blood flow changes in real time, and may thus help differentiate primary from ...
Zheng Yan-Ling - - 2010
The purpose of this study was to compare the capability of contrast-enhanced ultrasonography (CEUS) and contrast-enhanced computed tomography (CECT) in evaluating the vascularity of liver metastases. Both CEUS and CECT examinations were performed on 70 patients with liver metastases, which were from colon carcinoma in 31, rectal carcinoma in 17, ...
Hwang Eugene - - 2010
We assessed the role of the unenhanced helical computed tomography (UHCT) for prediction of concurrent ureteral lesions associated with small impacted stones presenting in distal ureter. From May 2004 to June 2009, we evaluated 30 cases with impacted distal ureteral stones <5 mm. All of the patients were evaluated with ...
Tuncel Altug - - 2010
We present the case of a 64-year-old female with a periadrenal paraganglioma. The mass was diagnosed during abdominal ultrasonography performed to investigate right flank pain. Magnetic resonance imaging showed a lesion 48mm in diameter with an irregular hyperintense central margin, thickened septa, centrally located cystic component, and contrast enhancing peripheral ...
Rodins Karl - - 2011
We present a case of a 49-year-old man who presented with a solitary atypical pigmented lesion with a surrounding halo of dermatitis. Dermoscopy showed a pigment network at the periphery with areas of scar-like depigmentation, negative pigment network and erythema. The lesion was treated preoperatively with a potent topical corticosteroid ...
Qian Zhen - - 2010
The whole-heart coronary artery calcium (CAC) score has poor predictive value for obstructive coronary artery disease (CAD). We hypothesized that vessel- and lesion-specific CAC scores are more accurate. To evaluate the usefulness of vessel- and lesion-specific CAC in predicting obstructive CAD and to assess the incremental value added by the ...
Baber Usman - - 2010
Contemporary management of coronary artery disease relies increasingly on percutaneous techniques combined with medical therapy. Although percutaneous coronary intervention (PCI) can be performed successfully in most lesions, several difficult lesion subsets continue to present unique technical challenges. These complex lesions may be classified according to anatomic criteria, including extensive calcification, ...
Lu Tri-Linh C - - 2010
To assess the inter/intraobserver variability of apparent diffusion coefficient (ADC) measurements in treated hepatic lesions and to compare ADC measurements in the whole lesion and in the area with the most restricted diffusion (MRDA). Twenty-five patients with treated malignant liver lesions were examined on a 3.0T machine. After agreeing on ...
Kwan Tak W - - 2010
Although the provisional stenting technique to treat coronary bifurcation lesions is the preferred method, many bifurcation lesions still require a two-stent technique to optimize the result and clinical outcome. This manuscript summarizes the tips and tricks of bifurcation stenting with cases illustrations. As interventionists are encountering more complex and difficult ...
Marquez Moreno A J - - 2010
To describe a case of urachal adenocarcinoma with late brain metastases in a sixty one year old man who presented abdominal discomfort and hematuria during six months. The clinical suspicion was bladder tumor and diagnostic studies were performed (urinary cytology, cystoscopy, abdominal ultrasound and abdominopelvic CT scan). Surgical treatment was ...
Shah Dipen C - - 2010
Electrode tissue contact, radiofrequency (RF) power and duration are major determinants of RF lesion size. Since contact forces (CF) vary in the beating heart, we evaluated contact force-time integral (FTI) as a predictor of lesion size at constant RF power in a contractile bench model simulating the beating heart. An ...
Yong Andy S C - - 2011
Aims We investigated whether three-dimensional (3D) and two-dimensional quantitative coronary angiography (2D-QCA) measurements differed in their accuracy in predicting reduced fractional flow reserve (FFR), and how this varied with stenosis severity and the FFR cut-off used. Methods and results Three-dimensional and 2D-QCA were compared in their measurements of minimum luminal ...
Cao Jia-Ying JY Department of Ultrasound, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, - - 2010
We report three rare cases of sclerosing angiomatoid nodular transformation (SANT) in the spleen. We compared the conventional and contrast-enhanced ultrasonographic appearance. The conventional sonographic examinations exhibited solitary lesions without common respects, while contrast-enhanced ultrasonography (CEUS) revealed nodular appearance mimicking its pathologic characteristics. It suggests that CEUS can provide morphologic ...
Llufriu Sara S Service of Neurology, Hospital Clinic, Universitat de Barcelona, - - 2010
Hypointense rims peripherally on T2-weighted MRI (rim lesions) have been associated with gadolinium ring-enhancing lesions in multiple sclerosis (MS) in pathological studies. However, little is known about their frequency, we analyzed clinical significance in a cohort of MS sufferers according to routine clinical practice. We retrospectively reviewed all available MRI ...
Geiger Julia - - 2010
Acute idiopathic scrotal edema (AISE) is an important differential diagnosis in children presenting with an acute scrotum. Sonography plays an important role in excluding testicular torsion, epididymitis, and torsion of a testicular appendage and confirming the diagnosis of AISE. The purpose of this series was to evaluate the relevance of ...
Sixt Sebastian - - 2010
Directional atherectomy (DA) has become popular in some centers to remove atherosclerotic plaques in femoro-popliteal lesions. Although immediate and also short - term outcome data are promising, solid long-term data are warranted to justify the widespread use in daily practice. In this prospective study de novo and restenotic lesions of ...
Luo Rong-guang - - 2010
RATIONALE AND OBJECTIVES: To explore the morphological characteristics of ablated lesions and find which combination of duration, temperature, and power was preferable to create largest lesion size with monopolar perfusion electrodes. MATERIALS AND METHODS: Using monopolar perfusion electrodes to create 72 lesions in 30 excised porcine livers with radiofrequency radiation ...
Kawai Tomoko - - 2010
OBJECTIVES: Stent fracture (SF) of sirolimus-eluting stents (SES) has emerged recently in the literature and shown to be associated with an increased risk of restenosis; however, little is known regarding SF after bare-metal stent implantation. We sought to assess whether the use of SES was associated with an increased risk ...
Badhey Neeraj N Department of Cardiology, VA North Texas Healthcare System, Dallas, Texas, - - 2010
We sought to evaluate the contemporary use of embolic protection devices (EPDs) in saphenous vein graft (SVG) interventions. We examined EPD use in the stenting of saphenous vein grafts (SOS) trial, in which 80 patients with 112 lesions in 88 SVGs were randomized to a bare metal stent (39 patients, ...
Roberts Elved B - - 2010
Previous angiographic lesion classification systems were derived from analysis of outcomes and lesion complexity in the early stent era. Advances in equipment design and techniques have altered the association between lesion and target vessel characteristics and procedural outcome in modern percutaneous coronary intervention (PCI). We evaluated the precise relationship between ...
Guerriero Stefano - - 2010
The aim of the study was to compare the diagnostic accuracy of grayscale sonography and that of color Doppler imaging in the diagnosis of ovarian malignancy in a prospective study by the Sardinia-Navarra group. The study was performed as a collaborative work at the 2 European university departments of obstetrics ...
Pathan Zaheer Abbas Ali Khan - - 2010
Endometriosis is the presence of functioning endometrium outside the uterus. Endometriosis rarely occurs in the abdominal wall. Majority of abdominal wall endometriosis occur in or adjacent to surgical scars, following caesarean section or hysterectomy. Laparotomy scar endometriosis following salpingectomy for ectopic pregnancy has rarely been reported. We report a case ...
Bhatt Shweta - - 2011
The use of high-frequency ultrasound is increasing for the treatment of cystic, vascular, and solid non-neoplastic intratesticular masses. Cystic lesions examined include simple testicular cysts, tunica albuginea cysts, epidermoid cysts, tubular ectasia of rete testis, and intratesticular abscesses. Vascular lesions examined include intratesticular varicocele and intratesticular arteriovenous malformations. Solid lesions ...
Yamatogi Shigenari - - 2011
There has been concern regarding the usefulness of diffusion-weighted imaging (DWI) to evaluate the ischemic lesions associated with carotid artery stent placement (CAS). Some small lesions may be detected not by standard DWI but by thin-slice DWI alone, since most of the cerebral lesions are very small in size and ...
Lixin Jiang - - 2011
The purpose of this study was to analyze the image of the lesion and give the sonographic diagnosis features of Zenker diverticulum. Sonography was performed with a high-frequency linear array probe. The location, size, shape, and echogenicity of the Zenker diverticulum were recorded. To find the lesion whether to be ...
Fiebach Jochen B - - 2010
Infarction typically develops within the borders of an initial hypoperfused tissue. We prospectively investigated whether in small subcortical stroke patients infarct growth can occur beyond the margins of the affected vascular territories. In 19 consecutive patients, stroke MRI was performed within 14 h after ictus, and at days 2 and ...
Sancak S - - 2010
The assessment of tumor vascularization by color flow Doppler sonography (CFDS) has been suggested for the distinction between benign and malignant thyroid nodules. Our objective was to investigate if the CFDS results reflect the percentage of histologically determined microvessels in adenomas (As), adenomatous nodules (ANs), and papillary carcinomas (PCs). Tissue ...
Xia Yu - - 2010
The diagnosis of intra-abdominal lesions of undetermined origin is often a challenge for endoscopists and radiologists. To evaluate the microvasculature of benign and malignant intra-abdominal lesions by contrast-enhanced harmonic EUS (CEH-EUS) and to investigate its usefulness for discriminating between malignant and benign lesions. The vascularity of intra-abdominal lesions of undetermined ...
Miyazaki Shinsuke - - 2010
Recently, a novel linear multielectrode mapping/ablation catheter was developed. We present a case in which mitral isthmus line ablation was undertaken with this catheter and showed repeated conduction recovery at the same site on the line. Mapping with this multielectrode catheter along the whole lesion allowed recording of abrupt conduction ...
Sohns Christian - - 2010
BACKGROUND: Advances in CT technology from single to multi-detector row CT (MDCT) permit a high resolution and volumetric presentation of pulmonary lesions. This implicates emerging measurement techniques that need to be contrasted with established methods. PURPOSE: To compare bidimensional, unidimensional, and volumetric methods for evaluation of treatment response in patients ...
Partridge Savannah C - - 2010
OBJECTIVE: The purpose of this study was to determine whether lesion type and size affect discrimination of benign and malignant breast lesions with diffusion-weighted MRI. MATERIALS AND METHODS: This study included 91 women with 116 breast lesions identified with dynamic contrast-enhanced MRI. Diffusion-weighted images were acquired during clinical breast MRI ...
Li Rui - - 2010
Hepatic angiomyolipoma is a rare, benign, hepatic mesenchymal neoplasm. We report a case of an extremely large hepatic angiomyolipoma in a 58-year-old woman with unusual sonographic features. The tumor was well demarcated from the surrounding liver and showed a heterogeneous cystic appearance with a thick echogenic rim. Color Doppler showed ...
Cao Bing-Sheng - - 2010
OBJECTIVE: The purposes of this study were to describe the ultrasonographic findings in hepatic tuberculosis (TB) after administration of a second-generation sulfur hexafluoride-filled microbubble contrast agent and to correlate these findings with pathologic characteristics. METHODS: Twenty-four hepatic TB lesions in 15 patients were studied with conventional ultrasonography (CUS) and contrast-enhanced ...
Matsukage Takashi - - 2010
OBJECTIVES: The aim of this study was to evaluate the safety and effectiveness of a 0.010-inch guidewire and a balloon catheter for treatment of chronic total occlusion (CTO). BACKGROUND: Pathological studies have shown that 60-70% of CTO lesions have microchannels of sizes equal to or less than 0.010 inch. METHODS: ...
Luo Wen W Gastroenterological Center, Yokohama City University Medical Center, 4-57 Urafune-cho, Minami-ku, Yokohama, Kanagawa 232-0024, - - 2010
To differentiate focal liver lesions based on enhancement patterns using three-dimensional ultrasonography (3D US) with perflubutane-based contrast agent. Two hundred and eighty two patients with focal liver lesions, including 168 hepatocellular carcinomas (HCCs), 63 metastases, 40 hemangiomas and 11 focal nodular hyperplasias (FNHs), were examined by 3D US with perflubutane-based ...
Drudi F M - - 2010
To assess the efficacy of low-mechanical index contrast-enhanced ultrasonography (CEUS) in the differentiation of a series of histologically proven bladder lesions identified via conventional cystoscopy and biopsied. 36 patients (mean age: 62 years; range 45 - 72 years) with bladder lesions previously detected by color power Doppler ultrasonography (CDUS) were ...
Nagai Hiroyuki - - 2010
We report on two patients with sirolimus-eluting stent (SES) restenosis lesions who showed highly echolucent regions by optical coherence tomography (OCT) and who could be assessed histologically after removal by directional coronary atherectomy (DCA). One restenosis lesion had a bilayer structure of hyperechoic outer layers and highly echolucent inner layers ...
Kudla M J - - 2010
OBJECTIVE: To assess whether, when using spherical sampling with Virtual Organ Computer-Aided Analysis (VOCAL) for calculating three-dimensional (3D) power Doppler angiography (PDA) indices, the sphere volume affects performance in the prediction of malignancy in vascularized cystic-solid or solid adnexal masses. METHODS: One hundred and thirty-eight women (mean +/- SD age, ...
Wortsman Ximena - - 2010
The purpose of this study was to determine the scope of high-resolution sonography in the detection of benign tumors and pseudotumors of the nail unit. We performed a retrospective study of the sonographic findings in 103 consecutive patients with benign tumors and pseudotumors of the nail that were medically derived ...
Minami Yasunori - - 2010
Conventional contrast harmonic sonography has the technical problem of a short enhancement time during targeting of hepatic malignancies for radiofrequency (RF) ablation. This study investigated the effectiveness of contrast harmonic sonographic guidance using perfluorocarbon microbubbles (Sonazoid) during RF ablation of hepatic malignancies. Nodules were detected on contrast-enhanced computed tomography, but ...
Lee Sang Kwon - - 2010
BACKGROUND: To describe gray-scale and power Doppler (PD) sonographic (US) findings of Hürthle cell neoplasms (HCNs) of the thyroid gland, and to determine if there is any correlation between US and gross pathologic features. METHOD: This retrospective study included 30 pathologically proven HCNs in 30 subjects who underwent preoperative gray-scale ...
Aoyagi Tomoyoshi - - 2010
BACKGROUND/AIMS: The aims of this study were to determine the feasibility of diffusion-weighted imaging (DWI) for detecting bowel inflammation and to investigate the changes in the apparent diffusion coefficient (ADC) values in the inflamed bowel of patients with ulcerative colitis (UC). METHODOLOGY: Seven patients, who underwent DWI for UC and ...
Polat Muhterem - - 2010
A 10-year-old girl who was admitted to the urology department with complaints of urinary incontinence was referred to our dermatology outpatient clinic because of a congenital, circumscribed, hypertrichotic area on the lumbosacral region. Cutaneous examination revealed a circumscribed area of coarse, dark terminal hair measuring 25 x 15 cm overlying ...
Sorelli P G - - 2010
BACKGROUND: We investigated whether microvascular enhancement on contrast-enhanced sonographic (CEUS) imaging can aid in distinguishing between benign and malignant lesions and correlated these findings with histopathological findings. METHOD: Fifteen patients with a palpable breast mass were recruited. Following informed consent, 4.8 mL of the microbubble contrast agent SonoVue was injected ...
Fukuzawa Masakatsu M Division of Endoscopy, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 1040045, Japan. - - 2010
To evaluate the surface microvascular patterns of early colorectal cancer (ECC) using narrow-band imaging (NBI) with magnification and its effectiveness for invasion depth diagnosis. We studied 112 ECC lesions [mucosal/submucosal superficial (m/sm-s), 69; sm-deep (sm-d), 43] > or = 10 mm that subsequently underwent endoscopic or surgical treatment at our ...
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