10701
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Haghnegahdar A, Bronoosh P. Accuracy of linear vertical measurements in posterior mandible on panoramic view. Dent Res J (Isfahan) 2013; 10:220-4. [PMID: 23946740 PMCID: PMC3731964 DOI: 10.4103/1735-3327.113349] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background: One of the most frequent concerns encountered in dental implant treatments is inadequate pre-operative planning. Panoramic radiographs are readily accessible and cost efficient. The aim of this study is to assess the accuracy of vertical measurements in mandibular molar and premolar region on panoramic radiography. Materials and Methods: Panoramic radiographs were made of a partially edentulous sheep mandible mounted in acryl. Measurements collected from the computer-generated images were compared to measurements made directly on the cross-sectioned hemi-mandibles using t-test. P < 0.05 was considered significant. Results: The results show that panoramic image is overestimated in predicting the linear measurements in posterior mandible. By applying the magnification factor of 1.29 the difference became insignificant. Conclusion: It seems rational to use panoramic radiography for pre-surgical implant assessment of posterior mandible if a true magnification factor is applied.
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Affiliation(s)
- Abdolaziz Haghnegahdar
- Department of Oral Radiology, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
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10702
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Sakoda M, Ueno S, Iino S, Minami K, Ando K, Kawasaki Y, Kurahara H, Mataki Y, Maemura K, Shinchi H, Natsugoe S. Endoscopic versus open radiofrequency ablation for treatment of small hepatocellular carcinoma. World J Surg 2013. [PMID: 23192169 DOI: 10.1007/s00268-012-1868-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Surgical radiofrequency ablation (RFA) for hepatocellular carcinoma (HCC) is associated with superior oncological outcome in comparison with percutaneous RFA. The present study aimed to retrospectively evaluate the relative perioperative safety and postoperative outcome of the laparoscopic or thoracoscopic approach versus the open approach to RFA for small HCC. METHODS A retrospective analysis was performed in 55 consecutive patients who underwent open (n = 32) or laparoscopic/thoracoscopic (LTS) RFA (n = 23) for primary unresectable HCC between January 2005 and December 2010. Baseline characteristics, survival/recurrence rates, and complications after treatment were compared between the two groups. RESULTS There was a trend showing that LTS RFA was performed for tumors located in the anterior segment (e.g., segments III, V, VIII). The LTS RFA group had a significantly lower intraoperative blood loss, shorter operative time, and shorter postoperative hospital stay, compared with the open RFA group. No major postoperative complications occurred in patients who underwent LTS RFA. No significant differences in overall survival, recurrence-free survival and local recurrence rates were observed between the two groups. CONCLUSIONS In consideration of operative invasiveness and postoperative recovery, LTS RFA is superior to the open approach in patients with small HCC. Moreover, the surgical outcome did not differ between the two approaches. Laparoscopic/thorascopic RFA can be considered to be a useful procedure for ablation therapy.
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Affiliation(s)
- Masahiko Sakoda
- Department of Digestive Surgery, Breast and Thyroid Surgery, Kagoshima University School of Medicine, 8-35-1 Sakuragaoka, Kagoshima, 890-8520, Japan.
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10703
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D’Onofrio M, Crosara S, De Robertis R, Canestrini S, Demozzi E, Gallotti A, Mucelli RP. Acoustic radiation force impulse of the liver. World J Gastroenterol 2013; 19:4841-4849. [PMID: 23946588 PMCID: PMC3740413 DOI: 10.3748/wjg.v19.i30.4841] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Revised: 04/15/2013] [Accepted: 07/19/2013] [Indexed: 02/06/2023] Open
Abstract
Acoustic radiation force impulse (ARFI) imaging is a new and promising ultrasound-based diagnostic technique that, evaluating the wave propagation speed, allows the assessment of the tissue stiffness. ARFI is implemented in the ultrasound scanner. By short-duration acoustic radiation forces (less than 1 ms), localized displacements are generated in a selected region of interest not requiring any external compression so reducing the operator dependency. The generated wave scan provides qualitative or quantitative (wave velocity values) responses. Several non-invasive methods for assessing the staging of fibrosis are used, in order to avoid liver biopsy. Liver function tests and transient elastography are non-invasive, sensitive and accurate tools for the assessment of liver fibrosis and for the discrimination between cirrhotic and non-cirrhotic liver. Many published studies analyse ARFI performance and feasibility in studying diffuse liver diseases and compare them to other diagnostic imaging modalities such as conventional ultrasonography and transient elastography. Solid focal liver lesions, both benign and malignant, are common findings during abdominal examinations. The accurate characterization and differential diagnosis are important aims of all the imaging modalities available today. Only few papers describe the application of ARFI technology in the study of solid focal liver lesions, with different results. In the present study, the existing literature, to the best of our knowledge, about ARFI application on diffuse and focal liver pathology has been evaluated and results and statistical analyses have been compared, bringing to the conclusion that ARFI can be used in the study of the liver with similar accuracy as transient elastography in diagnosing significant fibrosis or cirrhosis and has got some advantages in respect to transient elastography since it does not require separate equipment, better displays anatomical structures and measurements can be successfully carried out almost in every patient.
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10704
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Koczurkiewicz P, Podolak I, Skrzeczyńska-Moncznik J, Sarna M, Wójcik KA, Ryszawy D, Galanty A, Lasota S, Madeja Z, Czyż J, Michalik M. Triterpene saponosides from Lysimachia ciliata differentially attenuate invasive potential of prostate cancer cells. Chem Biol Interact 2013; 206:6-17. [PMID: 23954719 DOI: 10.1016/j.cbi.2013.08.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 07/25/2013] [Accepted: 08/05/2013] [Indexed: 01/06/2023]
Abstract
Neither androgen ablation nor chemotherapeutic agents are effective in reducing the risk of prostate cancer progression. On the other hand, multifaceted effects of phytochemicals, such as triterpene saponins, on cancer cells have been suggested. A promising safety and tolerability profile indicate their possible application in the treatment of advanced prostate cancers. We analyzed the specificity, selectivity and versatility of desglucoanagalloside B effects on human prostate cancer cells derived from prostate cancer metastases to brain (DU-145 cells) and bone (PC-3 cells). Prominent growth arrest and apoptotic response of both cell types was observed in the presence of sub-micromolar desglucoanagalloside B concentrations. This was accompanied by cytochrome c release and caspase 3/7 activation. A relatively low cytostatic and pro-apoptotic response of cancer cells to a desglucoanagalloside B analog, anagallosaponin IV, illustrated the specificity of the effects of desglucoanagalloside B, whereas the low sensitivity of normal prostate PNT2 cells to desglucoanagalloside B showed the selectivity of its action. Inhibition of cancer cell motility was observed in the presence of both saponins, however only desglucoanagalloside B attenuated cancer cell invasive potential, predominantly through an effect on cell elastic properties. These data demonstrate the versatility of its effects on prostate cancer cells. In contrast to PNT2 cells, cancer cells tested in this study were relatively resistant to mitoxantrone. The multifaceted action of desglucoanagalloside B on basic cellular traits, crucial for prostate cancer progression, opens perspectives for elaboration of combined palliative therapies and new prostate cancer prophylaxis regimens.
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Affiliation(s)
- Paulina Koczurkiewicz
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland; Department of Pharmacognosy, Pharmaceutical Faculty, Medical College, Jagiellonian University, Medyczna 9, 30-688 Kraków, Poland
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10705
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Geriatric chest imaging: when and how to image the elderly lung, age-related changes, and common pathologies. Radiol Res Pract 2013; 2013:584793. [PMID: 23936651 PMCID: PMC3713368 DOI: 10.1155/2013/584793] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Accepted: 06/11/2013] [Indexed: 12/21/2022] Open
Abstract
Even in a global perspective, societies are getting older. We think that diagnostic lung imaging of older patients requires special knowledge. Imaging strategies have to be adjusted to the needs of frail patients, for example, immobility, impossibility for long breath holds, renal insufficiency, or poor peripheral venous access. Beside conventional radiography, modern multislice computed tomography is the method of choice in lung imaging. It is especially important to separate the process of ageing from the disease itself. Pathologies with a special relevance for the elderly patient are discussed in detail: pneumonia, aspiration pneumonia, congestive heart failure, chronic obstructive pulmonary disease, the problem of overlapping heart failure and chronic obstructive pulmonary disease, pulmonary drug toxicity, incidental pulmonary embolism pulmonary nodules, and thoracic trauma.
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10706
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Lim SY, Nakamura K, Morishita K, Sasaki N, Murakami M, Osuga T, Ohta H, Yamasaki M, Takiguchi M. Qualitative and quantitative contrast enhanced ultrasonography of the pancreas using bolus injection and continuous infusion methods in normal dogs. J Vet Med Sci 2013; 75:1601-7. [PMID: 23955397 PMCID: PMC3942965 DOI: 10.1292/jvms.13-0199] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Quantitative contrast enhanced
ultrasound is a major breakthrough for ultrasound imaging in recent years. However,
contrast enhancement of the pancreas is brief with bolus injection. To assess if
continuous infusion of Sonazoid® can prolong the duration of pancreatic
enhancement over bolus injections, eight adult dogs received bolus injection and
continuous infusion of Sonazoid® on separate days. Contrast enhanced ultrasound
of the pancreatic parenchyma and proximal descending duodenum was performed, and time
intensity curves reflecting tissue perfusions were generated. Perfusion parameters- time
to initial upslope, peak time, time to wash-out and peak intensity were calculated and
evaluated. Fast wash-in to intense peak, followed by rapid wash-out was observed for time
intensity curves of bolus injection. With continuous infusion, contrast wash-in to peak
intensity was gradual, followed by long plateau and slow wash-out. Median contrast
enhancement durations of the pancreas and duodenum were significantly prolonged by
continuous infusion from 11 sec (range, 10 to 23 sec) and 16 sec (range, 3 to 43 sec) at
bolus injection to 205 sec (range, 170 to 264 sec, P<0.01) and 193 sec
(range, 169 to 216 sec, P<0.05), respectively. Median peak intensity
of the pancreas was 100.9 MPV (range, 80.2 to 124.3 MPV) at bolus injection and 77.6 MPV
(range, 58.2 to 99.5 MPV, P<0.05) at continuous infusion. Prolonged
continuous imaging is afforded by continuous infusion of contrast agent. Peak intensity of
the pancreas was slightly diminished in continuous infusion, but offered adequate imaging
subjectively.
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Affiliation(s)
- Sue Yee Lim
- Graduate School of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan
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10707
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Imaging appearances for recurrent nasopharyngeal carcinoma and post-salvage nasopharyngectomy. Clin Radiol 2013; 68:e629-38. [PMID: 23937825 DOI: 10.1016/j.crad.2013.06.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 05/27/2013] [Accepted: 06/03/2013] [Indexed: 11/23/2022]
Abstract
Nasopharyngeal carcinoma (NPC) is a head and neck neoplasm that occurs in endemic numbers among people of southern Chinese descent. External beam radiation to the nasopharyngeal bed and primary draining lymph node echelons is the mainstay of treatment with concurrent cisplatin-based chemotherapy for more advanced disease. Detection of residual and/or recurrent NPC has important clinical implications, as salvage protocols are available. The review aims to increase awareness of the imaging features of NPC recurrences at local and distant sites using computed tomography (CT), magnetic resonance imaging (MRI), and positron-emission tomography (PET). Important changes in imaging seen in patients after nasopharyngectomy are also discussed.
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10708
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Smargiassi A, Inchingolo R, Soldati G, Copetti R, Marchetti G, Zanforlin A, Giannuzzi R, Testa A, Nardini S, Valente S. The role of chest ultrasonography in the management of respiratory diseases: document II. Multidiscip Respir Med 2013; 8:55. [PMID: 23937897 PMCID: PMC3750688 DOI: 10.1186/2049-6958-8-55] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Accepted: 07/29/2013] [Indexed: 12/18/2022] Open
Abstract
Chest ultrasonography can be a useful diagnostic tool for respiratory physicians. It can be used to complete and widen the general objective examination also in emergency situations, at the patient's bedside. The aim of this document is to promote better knowledge and more widespread use of thoracic ultrasound among respiratory physicians in Italy.This document II is focused on advanced approaches to chest ultrasonography especially in diagnosing sonographic interstitial syndrome with physical hypotheses about the genesis of vertical artifacts, differential diagnosis of cardiogenic pulmonary edema and non-cardiogenic pulmonary edema, raising diagnostic suspicion of pulmonary embolism, ultrasound characterization of lung consolidations and the use of ultrasonography to guide procedural interventions in pulmonology.Finally, document II focuses on chest ultrasonography as useful diagnostic tool in neonatal and pediatric care.
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Affiliation(s)
- Andrea Smargiassi
- Pulmonary Medicine Department, Università Cattolica del Sacro Cuore, University Hospital “A. Gemelli”, Roma, Italy
| | - Riccardo Inchingolo
- Pulmonary Medicine Department, Università Cattolica del Sacro Cuore, University Hospital “A. Gemelli”, Roma, Italy
| | - Gino Soldati
- Emergency Department, General Hospital “ASL 2 Valle del Serchio”, Castelnuovo di Garfagnana, Lucca, Italy
| | - Roberto Copetti
- Emergency Department, GeneralHospital “ASS 5 BassaFriulana”, Latisana, Udine, Italy
| | | | | | - Rosangela Giannuzzi
- Emergency Department, Università Cattolica del Sacro Cuore, University Hospital “A. Gemelli”, Roma, Italy
| | - Americo Testa
- Internal Medicine Unit, Private Hospital “Madonna delle Grazie”, Velletri, Roma, Italy
| | - Stefano Nardini
- Pulmonary and TB Unit, Vittorio Veneto General Hospital, Vittorio Veneto, TV, Italy
| | - Salvatore Valente
- Pulmonary Medicine Department, Università Cattolica del Sacro Cuore, University Hospital “A. Gemelli”, Roma, Italy
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10709
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Normal breast tissue stiffness measured by a new ultrasound technique: virtual touch tissue imaging quantification (VTIQ). Eur J Radiol 2013; 82:e676-9. [PMID: 23932637 DOI: 10.1016/j.ejrad.2013.06.029] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Revised: 06/03/2013] [Accepted: 06/09/2013] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To evaluate normal breast tissue stiffness with virtual touch tissue imaging quantification (VTIQ) using prospectively collected data. MATERIALS AND METHODS B-mode ultrasound and VTIQ were performed in 132 breasts in 97 women. Mean values of VTIQ for parenchyma and fatty tissue were compared between those measured in healthy breasts and in the surrounding of histologically proven benign and malignant breast lesions. Moreover we reviewed VTIQ values according to breast density measured by the American College of Radiology (ACR) categories. In addition we analyzed re-test reliability of VTIQ. RESULTS In 132 breasts the mean VTIQ values in parenchyma were significantly higher than in fatty tissue (3.23 m/s ± 0.74 versus 2.5 m/s ± 0.61; p<0.0001). In healthy breasts as well as in the surrounding of a benign or malignant lesions the VTIQ values of parenchyma were similar (p=0.12). In fatty tissue, small differences between mean VTIQ values of 2.25 m/s ± 0.51, 2.52 m/s ± 0.48 and 2.65 m/s ± 0.71 (p=0.01) in the respective groups were observed. The comparison of mean VTIQ values of parenchyma and fatty tissue in more and less dense breasts (ACR 1+2 versus ACR 3+4 breasts) also yielded no statistically significant difference. The re-test reliability of VTIQ assessed with three independent measurements was moderate (interclass-correlation of 0.52 (p<0.0001)). CONCLUSION VTIQ is a reliable method for measuring the stiffness of breast tissue. We propose standard values for healthy parenchyma and fatty tissues independent of the surrounding tissue or the ACR category.
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10710
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Saba L, Anzidei M, Marincola BC, Piga M, Raz E, Bassareo PP, Napoli A, Mannelli L, Catalano C, Wintermark M. Imaging of the carotid artery vulnerable plaque. Cardiovasc Intervent Radiol 2013; 37:572-85. [PMID: 23912494 DOI: 10.1007/s00270-013-0711-2] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Accepted: 07/03/2013] [Indexed: 11/28/2022]
Abstract
Atherosclerosis involving the carotid arteries has a high prevalence in the population worldwide. This condition is significant because accidents of the carotid artery plaque are associated with the development of cerebrovascular events. For this reason, carotid atherosclerotic disease needs to be diagnosed and those determinants that are associated to an increased risk of stroke need to be identified. The degree of stenosis typically has been considered the parameter of choice to determine the therapeutical approach, but several recently published investigations have demonstrated that the degree of luminal stenosis is only an indirect indicator of the atherosclerotic process and that direct assessment of the plaque structure and composition may be key to predict the development of future cerebrovascular ischemic events. The concept of "vulnerable plaque" was born, referring to those plaque's parameters that concur to the instability of the plaque making it more prone to the rupture and distal embolization. The purpose of this review is to describe the imaging characteristics of "vulnerable carotid plaques."
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Affiliation(s)
- Luca Saba
- Department of Radiology, Azienda Ospedaliero Universitaria (A.O.U.), di Cagliari - Polo di Monserrato, s.s. 554, 09045, Monserrato, Cagliari, Italy,
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10711
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Alzaraa A, Gravante G, Chung WY, Al-Leswas D, Morgan B, Dennison A, Lloyd D. Contrast-enhanced ultrasound in the preoperative, intraoperative and postoperative assessment of liver lesions. Hepatol Res 2013; 43:809-19. [PMID: 23745715 DOI: 10.1111/hepr.12044] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2012] [Revised: 12/04/2012] [Accepted: 12/10/2012] [Indexed: 12/12/2022]
Abstract
The use of contrast agents (CA) with liver ultrasound (US) has gained recently an established role for the diagnosis of various hepatic diseases due to their safety, high versatility and low costs (contrast-enhanced ultrasound: CEUS). The purpose of this review is to provide a state-of-the-art summary of the available evidence for their use in the characterization of focal liver lesions. A published work search was conducted for all preclinical and clinical studies involving CA on hepatic US imaging. CEUS increases the sensitivity for lesion detection and the specificity to differentiate between benign and malignant diseases due to the enhanced visualization of the tumor microcirculation. Results achieved seem at least equivalent to those of spiral computed tomography or magnetic resonance imaging. The association of CA with intraoperative ultrasound has changed the surgical approach in 25% of patients and guarantees complete ablations by a single session in most of them. CEUS provides detailed information about tumor vasculature, improves the preoperative characterization and therefore the therapeutic strategy, and can evaluate the intraoperative completeness of the ablation.
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Affiliation(s)
- Ahmed Alzaraa
- Department of General Surgery, William Harvey Hospital, Ashford
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10712
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Wijtenburg SA, Rowland LM, Edden RA, Barker PB. Reproducibility of brain spectroscopy at 7T using conventional localization and spectral editing techniques. J Magn Reson Imaging 2013; 38:460-7. [PMID: 23292856 PMCID: PMC3620961 DOI: 10.1002/jmri.23997] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Accepted: 11/20/2012] [Indexed: 11/09/2022] Open
Abstract
PURPOSE To evaluate the reproducibility of spectroscopic measurements from the anterior cingulate (AC) and the dorsolateral prefrontal cortex (DLPFC) regions at 7T using a 32-channel head coil. MATERIALS AND METHODS Spectra were acquired in four healthy subjects each scanned twice using a stimulated echo acquisition mode (STEAM) sequence, and a MEGA-PRESS-IVS sequence for gamma-aminobutyric acid (GABA) editing. STEAM spectra were quantified using LCModel, whereas MEGA-PRESS-IVS data were analyzed using peak integrals determined using in-house software. Mean coefficient of variation (CV) and mean absolute difference between visits were calculated. RESULTS For the AC STEAM dataset, the mean CV between visits was 6.2% for prominent metabolites such as N-acetylaspartate (NAA), total creatine (tCr), and total choline (tCho) and 6.3% for low signal-to-noise ratio (SNR) metabolites such as glutamate (Glu), glutamine (Gln), and GABA. The mean CV between visits for the DLPFC STEAM dataset was 8.5% for prominent metabolites and 21% for lower SNR metabolites. In the AC, the reproducibility measures for GABA were superior for STEAM compared to MEGA-PRESS-IVS (mean CV of 3.5% vs. 13.6%), but the opposite pattern was observed in the DLPFC region (mean CV of 16.2% vs. 13.4%). CONCLUSION 7T MR spectroscopy of the AC and DLPFC using both short TE STEAM and MEGA-PRESS-IVS sequences provide excellent reproducibility of 12 metabolites, including GABA.
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Affiliation(s)
- S. Andrea Wijtenburg
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Laura M. Rowland
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Richard A.E. Edden
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- F.M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, MD, USA
| | - Peter B. Barker
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- F.M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, MD, USA
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10713
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Agarwal R, Chakrabarti A, Shah A, Gupta D, Meis JF, Guleria R, Moss R, Denning DW. Allergic bronchopulmonary aspergillosis: review of literature and proposal of new diagnostic and classification criteria. Clin Exp Allergy 2013; 43:850-873. [DOI: 10.1111/cea.12141] [Citation(s) in RCA: 537] [Impact Index Per Article: 48.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Affiliation(s)
- R. Agarwal
- Department of Pulmonary Medicine; Post Graduate Institute of Medical Education and Research; Chandigarh India
| | - A. Chakrabarti
- Division of Medical Mycology; Department of Medical Microbiology; Post Graduate Institute of Medical Education and Research; Chandigarh India
| | - A. Shah
- Department of Pulmonary Medicine; Vallabhbhai Patel Chest Institute; University of Delhi; New Delhi India
| | - D. Gupta
- Department of Pulmonary Medicine; Post Graduate Institute of Medical Education and Research; Chandigarh India
| | - J. F. Meis
- Department of Medical Microbiology and Infectious Diseases; Canisius-Wilhelmina Hospital; Nijmegen The Netherlands
- Department of Medical Microbiology; Radboud University Nijmegen Medical Centre; Nijmegen The Netherlands
| | - R. Guleria
- Department of Internal Medicine; All India Institute of Medical Sciences; New Delhi India
| | - R. Moss
- Department of Pediatrics; Stanford University; Palo Alto CA USA
| | - D. W. Denning
- Manchester Academic Health Science Centre; The National Aspergillosis Centre; University of Manchester; University Hospital of South Manchester; Manchester UK
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10714
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Hillelsohn JH, Chuang KW, Goldenberg E, Gilbert BR. Spectral Doppler sonography: a noninvasive method for predicting dyspermia. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2013; 32:1427-1432. [PMID: 23887953 DOI: 10.7863/ultra.32.8.1427] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVES Sonography is a noninvasive, office-based diagnostic tool often used for evaluation of subfertile men. Previous studies have suggested that a resistive index (RI) greater than 0.6 is associated with impaired spermatogenesis. We sought to validate this threshold in a urologic patient population presenting for infertility evaluation. METHODS We retrospectively reviewed 99 consecutive patients seen for nonobstructive male infertility at our institution. Patient demographics, semen analysis parameters, hormone profiles, lipid profiles, and penile and scrotal sonographic measurements were recorded. The RI was calculated from measurements of the peak systolic velocity and end-diastolic velocity. Ninety-one patients fit the inclusion criteria and were subsequently divided into 2 groups based on RI: group 1 with RI values of 0.6 or less (n = 49) and group 2 with RI values greater than 0.6 (n = 42). RESULTS Variables that were significantly different between the groups included age, total sperm count, percent motile sperm, total motile sperm, follicle-stimulating hormone, high-density lipoprotein, and testis volume. On the other hand, body mass index, forward progression, World Health Organization score, total testosterone, free testosterone, estradiol, total cholesterol, low-density lipoprotein, and triglycerides were not significantly different between the groups. A receiver operating characteristic curve revealed an area under the curve of 0.64 (confidence interval, 0.52-0.75; P = .025). At the threshold of greater than 0.6, the RI had specificity of 63.27% and a 1.56 likelihood ratio to predict total motile sperm less than 20 × 10(6) at spermatogenesis. CONCLUSIONS An intratesticular RI greater than 0.6 is associated with impaired spermatogenesis. This finding supports the use of testicular spectral Doppler sonography as a noninvasive tool for evaluation of testicular function.
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Affiliation(s)
- Joel H Hillelsohn
- Arthur Smith Institute for Urology, Hofstra North Shore-LIJ School of Medicine, New Hyde Park, NY 11042 USA
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10715
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Advanced ultrasonography technologies to assess the effects of radiofrequency ablation on hepatocellular carcinoma. Radiol Oncol 2013; 47:224-9. [PMID: 24133386 PMCID: PMC3794877 DOI: 10.2478/raon-2013-0033] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Accepted: 03/24/2013] [Indexed: 01/08/2023] Open
Abstract
Background Radiofrequency ablation (RFA) is a curative therapy for hepatocellular carcinoma (HCC). In RFA, ultrasonography (US) is most commonly used to guide tumor puncture, while its effects are assessed using dynamic computed tomography or magnetic resonance. The differences in modalities used for RFA and assessment of its effects complicate RFA. We developed a method for assessing the effects of RFA on HCC by combining contrast-enhanced (CE) US and real-time virtual sonography with three-dimensional US data. Patients and methods Before RFA, we performed a sweep scan of the target HCC nodule and the surrounding hepatic parenchyma to generate three-dimensional US data. After RFA, we synchronized multi-planar reconstruction images derived from stored three-dimensional US data with real-time US images on the same US monitor and performed CEUS and real-time virtual sonography. Using a marking function, we drew a sphere marker along the target HCC nodule contour on pre-treatment US- multi-planar reconstruction images so that the automatically synchronized sphere marker represented the original HCC nodule contour on post-treatment real-time CEUS images. Ablation was considered sufficient when an avascular area with a margin of several millimeters in all directions surrounded the sphere marker on CEUS. Results This method was feasible and useful for assessing therapeutic effects in 13 consecutive patients with HCC who underwent RFA. In 2 patients who underwent multiple sessions of RFA, HCC-nodule portions requiring additional RFA were easily identified on US images. Conclusions This method using advanced US technologies will facilitate assessment of the effects of RFA on HCC.
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10716
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Sugano M, Negishi Y, Endo-Takahashi Y, Hamano N, Usui M, Suzuki R, Maruyama K, Aramaki Y, Yamamoto M. Gene delivery to periodontal tissue using Bubble liposomes and ultrasound. J Periodontal Res 2013; 49:398-404. [PMID: 23889504 DOI: 10.1111/jre.12119] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/06/2013] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVE Periodontitis is the most common inflammatory disease caused by oral biofilm infection. For efficient periodontal treatment, it is important to enhance the outcome of existing regenerative therapies. The physical action of an ultrasound may be able to deliver a therapeutic gene or drugs into the local area of the periodontium being treated for periodontal regeneration. Previously, we developed "Bubble liposomes" as a useful carrier for gene or drug delivery, and reported that delivery efficiency was increased with high-frequency ultrasound in vitro and in vivo. Hence, the aim of the present study was to examine the possibility of delivering genes into gingival tissues using Bubble liposomes and ultrasound. MATERIAL AND METHODS We attempted to deliver naked plasmid DNA encoding luciferase or enhanced green fluorescent protein (EGFP) into the lower labial gingiva of Wistar rats using Bubble liposomes, with or without ultrasound exposure. Ultrasound parameters were optimized for intensity (0-4.0 W/cm(2) ) and exposure time (0-120 s) to establish the most efficient conditions for exposure. The efficacy and duration of gene expression in the gingiva were investigated using a luciferase assay and fluorescence microscopy. RESULTS The strongest relative luciferase activity was observed when rats were treated under the following ultrasound conditions: 2.0 W/cm(2) intensity and 30 s of exposure time. Relative luciferase activity, 1 d after gene delivery, was significantly higher in gingiva treated using Bubble liposomes and ultrasound than in gingiva of the other treatment groups. Histological analysis also showed that distinct EGFP-expressing cells were observed in transfected gingiva when rats were treated under optimized conditions. CONCLUSION From these results, the combination of Bubble liposomes and ultrasound provides an efficient technique for delivering plasmid DNA into the gingiva. This technique can be applied for the delivery of a variety of therapeutic molecules into target tissue, and may serve as a useful treatment strategy for periodontitis.
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Affiliation(s)
- M Sugano
- Department of Periodontology, Showa University School of Dentistry, Tokyo, Japan; Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
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10717
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Abstract
Protons are an interesting modality for radiotherapy because of their well defined range and favourable depth dose characteristics. On the other hand, these same characteristics lead to added uncertainties in their delivery. This is particularly the case at the distal end of proton dose distributions, where the dose gradient can be extremely steep. In practice however, this gradient is rarely used to spare critical normal tissues due to such worries about its exact position in the patient. Reasons for this uncertainty are inaccuracies and non-uniqueness of the calibration from CT Hounsfield units to proton stopping powers, imaging artefacts (e.g. due to metal implants) and anatomical changes of the patient during treatment. In order to improve the precision of proton therapy therefore, it would be extremely desirable to verify proton range in vivo, either prior to, during, or after therapy. In this review, we describe and compare state-of-the art in vivo proton range verification methods currently being proposed, developed or clinically implemented.
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10718
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Daroszewski M, Szpinda M, Flisiński P, Szpinda A, Woźniak A, Kosiński A, Grzybiak M, Mila-Kierzenkowska C. Tracheo-bronchial angles in the human fetus -- an anatomical, digital, and statistical study. Med Sci Monit Basic Res 2013; 19:194-200. [PMID: 23857411 PMCID: PMC3724572 DOI: 10.12659/msmbr.889085] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Background Both the advancement of visual techniques and intensive progress in perinatal medicine result in performing airway management in the fetus and neonate affected by life-threatening malformations. This study aimed to examine the 3 tracheo-bronchial angles, including the right and left bronchial angles, and the interbronchial angle, in the fetus at various gestational ages. Material/Methods Using methods of anatomical dissection, digital image analysis with an adequate program (NIS-Elements BR 3.0, Nikon), and statistics, values of the two bronchial angles and their sum as the interbronchial angle were semi-automatically measured in 73 human fetuses at the age of 14–25 weeks, derived from spontaneous abortions and stillbirths. Results No male-female differences between the parameters studied were found. The 3 fetal tracheo-bronchial angles were found to be independent of age. The right bronchial angle ranged from 11.4° to 41.8°, and averaged 26.9±7.0° for the whole analyzed sample. The values of left bronchial angle varied from 24.8° to 64.8°, with the overall mean of 46.2±8.0°. As a consequence, the interbronchial angle totalled 36.2–96.6°, and averaged 73.1±12.7°. Conclusions The tracheo-bronchial angles change independently of sex and fetal age. The left bronchial angle is wider than the right one. Values of the 3 tracheo-bronchial angles are unpredictable since their regression curves of best fit with relation to fetal age cannot be modelled. Both of the 2 bronchial angles and the interbronchial angle are of great relevance in the location of inhaled foreign bodies, and in the diagnosis cardiac diseases and mediastinal abnormalities.
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Affiliation(s)
- Marcin Daroszewski
- Department of Normal Anatomy, The Ludwik Rydygier Collegium Medicum in Bydgoszcz, The Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
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10719
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Suarez-Munoz MA, Fernandez-Aguilar JL, Sanchez-Perez B, Perez-Daga JA, Garcia-Albiach B, Pulido-Roa Y, Marin-Camero N, Santoyo-Santoyo J. Risk factors and classifications of hilar cholangiocarcinoma. World J Gastrointest Oncol 2013; 5:132-138. [PMID: 23919107 PMCID: PMC3731526 DOI: 10.4251/wjgo.v5.i7.132] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 05/03/2013] [Accepted: 07/01/2013] [Indexed: 02/05/2023] Open
Abstract
Cholangiocarcinoma is the second most common primary malignant tumor of the liver. Perihilar cholangiocarcinoma or Klatskin tumor represents more than 50% of all biliary tract cholangiocarcinomas. A wide range of risk factors have been identified among patients with Perihilar cholangiocarcinoma including advanced age, male gender, primary sclerosing cholangitis, choledochal cysts, cholelithiasis, cholecystitis, parasitic infection (Opisthorchis viverrini and Clonorchis sinensis), inflammatory bowel disease, alcoholic cirrhosis, nonalcoholic cirrhosis, chronic pancreatitis and metabolic syndrome. Various classifications have been used to describe the pathologic and radiologic appearance of cholangiocarcinoma. The three systems most commonly used to evaluate Perihilar cholangiocarcinoma are the Bismuth-Corlette (BC) system, the Memorial Sloan-Kettering Cancer Center and the TNM classification. The BC classification provides preoperative assessment of local spread. The Memorial Sloan-Kettering cancer center proposes a staging system according to three factors related to local tumor extent: the location and extent of bile duct involvement, the presence or absence of portal venous invasion, and the presence or absence of hepatic lobar atrophy. The TNM classification, besides the usual descriptors, tumor, node and metastases, provides additional information concerning the possibility for the residual tumor (R) and the histological grade (G). Recently, in 2011, a new consensus classification for the Perihilar cholangiocarcinoma had been published. The consensus was organised by the European Hepato-Pancreato-Biliary Association which identified the need for a new staging system for this type of tumors. The classification includes information concerning biliary or vascular (portal or arterial) involvement, lymph node status or metastases, but also other essential aspects related to the surgical risk, such as remnant hepatic volume or the possibility of underlying disease.
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10720
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Pinto A, Pinto F, Faggian A, Rubini G, Caranci F, Macarini L, Genovese EA, Brunese L. Sources of error in emergency ultrasonography. Crit Ultrasound J 2013; 5 Suppl 1:S1. [PMID: 23902656 PMCID: PMC3711733 DOI: 10.1186/2036-7902-5-s1-s1] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND To evaluate the common sources of diagnostic errors in emergency ultrasonography. METHODS The authors performed a Medline search using PubMed (National Library of Medicine, Bethesda, Maryland) for original research and review publications examining the common sources of errors in diagnosis with specific reference to emergency ultrasonography. The search design utilized different association of the following terms : (1) emergency ultrasonography, (2) error, (3) malpractice and (4) medical negligence. This review was restricted to human studies and to English-language literature. Four authors reviewed all the titles and subsequent the abstract of 171 articles that appeared appropriate. Other articles were recognized by reviewing the reference lists of significant papers. Finally, the full text of 48 selected articles was reviewed. RESULTS Several studies indicate that the etiology of error in emergency ultrasonography is multi-factorial. Common sources of error in emergency ultrasonography are: lack of attention to the clinical history and examination, lack of communication with the patient, lack of knowledge of the technical equipment, use of inappropriate probes, inadequate optimization of the images, failure of perception, lack of knowledge of the possible differential diagnoses, over-estimation of one's own skill, failure to suggest further ultrasound examinations or other imaging techniques. CONCLUSIONS To reduce errors in interpretation of ultrasonographic findings, the sonographer needs to be aware of the limitations of ultrasonography in the emergency setting, and the similarities in the appearances of various physiological and pathological processes. Adequate clinical informations are essential. Diagnostic errors should be considered not as signs of failure, but as learning opportunities.
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Affiliation(s)
- Antonio Pinto
- Department of Diagnostic Imaging, A, Cardarelli Hospital, Naples, Italy.
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10721
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Schabath MB, Giuliano AR, Thompson ZJ, Amankwah EK, Gray JE, Fenstermacher DA, Jonathan KA, Beg AA, Haura EB. TNFRSF10B polymorphisms and haplotypes associated with increased risk of death in non-small cell lung cancer. Carcinogenesis 2013; 34:2525-30. [PMID: 23839018 DOI: 10.1093/carcin/bgt244] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Presently, there are few validated biomarkers that can predict survival or treatment response for non-small cell lung cancer (NSCLC) and most are based on tumor markers. Biomarkers based on germ line DNA variations represent a valuable complementary strategy, which could have translational implications by subclassifying patients to tailored, patient-specific treatment. We analyzed single nucleotide polymorphisms (SNPs) in 53 inflammation-related genes among 651 NSCLC patients. Multivariable Cox proportional hazard models, adjusted for lung cancer prognostic factors, were used to assess the association of genotypes and haplotypes with overall survival. Four of the top 15 SNPs associated with survival were located in the TNF-receptor superfamily member 10b (TNFRSF10B) gene. The T-allele of the top ranked SNP (rs11785599) was associated with a 41% increased risk of death (95% confidence interval [CI] = 1.16-1.70) and the other three TNFRSF10B SNPs (rs1047275, rs4460370 and rs883429) exhibited a 35% (95% CI = 1.11-1.65), 29% (95% CI = 1.06-1.57) and 24% (95% CI = 0.99-1.54) increased risk of death, respectively. Haplotype analyses revealed that the most common risk haplotype (TCTT) was associated with a 78% (95% CI = 1.25-2.54) increased risk of death compared with the low-risk haplotype (CGCC). When the data were stratified by treatment, the risk haplotypes exhibited statistically significantly increased risk of death among patients who had surgery only and no statistically significant effects among patients who had surgery and adjuvant chemotherapy. These data suggest that possessing one or more risk alleles in TNFRSF10B is associated with an increased risk of death. Validated germ line biomarkers may have potential important clinical implications by optimizing patient-specific treatment.
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10722
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Cai DM, Li YZ, Ma BY, Ling WW, Jiang Y, Zhang LY, Zhong XF, Zhang JY, Song B. Diagnostic value of ultrasound in detection of solid pseudopapillary tumor of the pancreas. Shijie Huaren Xiaohua Zazhi 2013; 21:1803-1810. [DOI: 10.11569/wcjd.v21.i19.1803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the diagnostic value of ultrasound in the detection of solid pseudopapillary tumor of the pancreas (SPTs).
METHODS: The data of ultrasound and contrast-enhanced ultrasound for 30 patients with pathologically confirmed SPTs were retrospectively analyzed. The rates of detection of SPTs by the two methods were compared using the χ2 test or Fisher's exact test.
RESULTS: Of 30 patients, 1 was male and the others were female. Their mean age was 30.5 years, ranging from 13 to 58 years. Fourteen tumors were located in the head of the pancreas, 4 in the body of the pancreas and 12 in the tail of the pancreas. The size of tumors ranged from 1.5 cm × 1.1 cm × 1.8 cm to 21 cm × 11 cm × 15 cm. Of 26 cases examined by ultrasound, 17 were correctly diagnosed, 1 had missed diagnosis, and 8 were diagnosed with other tumors of the pancreas. Of 4 cases examined by contrast-enhanced ultrasonography, 3 were correctly diagnosed and 1 was diagnosed with other tumor of the pancreas. There was no significant difference in the diagnostic accuracy between the two methods (64% vs 75%, P = 0.593).
CONCLUSION: SPTs exhibit some special ultrasound features, which may be helpful to diagnose this type of tumor.
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10723
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Iwazawa J, Hashimoto N, Mitani T, Ohue S. Fusion of intravenous contrast-enhanced C-arm CT and pretreatment imaging for ablation margin assessment of liver tumors: A preliminary study. Indian J Radiol Imaging 2013; 22:251-3. [PMID: 23833413 PMCID: PMC3698884 DOI: 10.4103/0971-3026.111470] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The aim of this preliminary study was to evaluate the feasibility of assessing ablation margins after radiofrequency ablation (RFA) of liver tumors from fusion images of post-treatment C-arm computed tomography (CT) images fused to pretreatment images. Five patients with liver tumors underwent RFA. Intravenous contrast-enhanced C-arm CT images were obtained for all patients immediately after RFA, and multi-detector CT (MDCT) images were obtained 3-7 days later. The C-arm CT and MDCT images were fused to pretreatment images using a multimodality image fusion software. The minimum ablation margins were assessed in the C-arm CT and MDCT fusion images. Ablation margins after RFA of liver tumors can be measured using intravenous contrast-enhanced C-arm CT images fused with pretreatment images. This technique has the potential for use in the intra-procedural assessment of liver tumor ablation.
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Affiliation(s)
- Jin Iwazawa
- Department of Radiology, Nissay Hospital, Itachibori, Nishiku, Osaka, Japan
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10724
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Transarterial chemoembolization in combination with local therapies for hepatocellular carcinoma: a meta-analysis. PLoS One 2013; 8:e68453. [PMID: 23844203 PMCID: PMC3701086 DOI: 10.1371/journal.pone.0068453] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2013] [Accepted: 05/29/2013] [Indexed: 02/05/2023] Open
Abstract
Background In previous randomized trials, transarterial chemoembolization (TACE) has shown an improvement of survival rate in hepatocellular carcinoma (HCC) when combined with radiofrequency ablation (RFA), percutaneous ethanol injection (PEI) or other therapies. The aim of this meta-analysis was to evaluate the effectiveness of combination therapy of TACE with RFA, PEI, radiotherapy (RT), three-dimensional conformal radiation therapy (3D-CRT) or High-Intensity Focused Ultrasound (HIFU). Methods Randomized or nonrandomized studies comparing TACE combined with RFA, PEI, RT, 3D-CRT or HIFU with TACE alone for HCC were included. Meta-analysis was performed using a fix-effects model in RCTs and a random-effects model among the observational studies. Results 10 randomized trials and 18 observational studies matched the selection criteria, including 2497 patients (682 in RCTs, 1815 in non-RCTs). Meta-analysis of RCTs showed that the combination of TACE and PEI ((RR)1-year=1.10, 95%CI=0.99-1.22, p=0.073; (RR)3-year=2.32, 95%CI=1.52-3.53, p<0.001), TACE+RT ((RR)1-year=1.37, 95%CI=1.11-1.70, p=0.004; (RR)3-year=2.32, 95%CI=1.44-3.75, p=0.001) were associated with higher survival rates. The results of observational studies were in good consistency with that of RCTs. Furthermore, TACE plus 3D-CRT ((RR)1-year=1.22, 95%CI=1.06-1.41, p=0.005; (RR)3-year=2.05, 95%CI=1.48-2.84, p<0.001) and TACE plus HIFU ((RR)1-year=1.16, 95%CI=1.01-1.33, p=0.033; (RR)3-year=1.66, 95%CI=1.12-2.45, p=0.011) have introduced marked survival benefit when pooling results from observational studies. Conclusions This meta-analysis demonstrated that TACE combined with local treatments, especially PEI, HIFU or 3D-CRT could improve the overall survival status than performing TACE alone. Importantly, these results need to be validated in further high-quality clinical trials.
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10725
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Transarterial chemoembolization in combination with local therapies for hepatocellular carcinoma: a meta-analysis. PLoS One 2013. [PMID: 23844203 DOI: 10.1371/journal.pone.0068453pone-d-13-13354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND In previous randomized trials, transarterial chemoembolization (TACE) has shown an improvement of survival rate in hepatocellular carcinoma (HCC) when combined with radiofrequency ablation (RFA), percutaneous ethanol injection (PEI) or other therapies. The aim of this meta-analysis was to evaluate the effectiveness of combination therapy of TACE with RFA, PEI, radiotherapy (RT), three-dimensional conformal radiation therapy (3D-CRT) or High-Intensity Focused Ultrasound (HIFU). METHODS Randomized or nonrandomized studies comparing TACE combined with RFA, PEI, RT, 3D-CRT or HIFU with TACE alone for HCC were included. Meta-analysis was performed using a fix-effects model in RCTs and a random-effects model among the observational studies. RESULTS 10 randomized trials and 18 observational studies matched the selection criteria, including 2497 patients (682 in RCTs, 1815 in non-RCTs). Meta-analysis of RCTs showed that the combination of TACE and PEI ((RR)(1-)year=1.10, 95%CI=0.99-1.22, p=0.073; (RR)(3-)year=2.32, 95%CI=1.52-3.53, p<0.001), TACE+RT ((RR)(1-)year=1.37, 95%CI=1.11-1.70, p=0.004; (RR)(3-)year=2.32, 95%CI=1.44-3.75, p=0.001) were associated with higher survival rates. The results of observational studies were in good consistency with that of RCTs. Furthermore, TACE plus 3D-CRT ((RR)1 -year=1.22, 95%CI=1.06-1.41, p=0.005; (RR)(3-)year=2.05, 95%CI=1.48-2.84, p<0.001) and TACE plus HIFU ((RR)(1-)year=1.16, 95%CI=1.01-1.33, p=0.033; (RR)(3-)year=1.66, 95%CI=1.12-2.45, p=0.011) have introduced marked survival benefit when pooling results from observational studies. CONCLUSIONS This meta-analysis demonstrated that TACE combined with local treatments, especially PEI, HIFU or 3D-CRT could improve the overall survival status than performing TACE alone. Importantly, these results need to be validated in further high-quality clinical trials.
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10726
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Lee JY, Diaz RR, Choi YD, Cho KS. Hybrid method of transurethral resection of ejaculatory ducts using holmium:yttriumaluminium garnet laser on complete ejaculatory duct obstruction. Yonsei Med J 2013; 54:1062-5. [PMID: 23709447 PMCID: PMC3663216 DOI: 10.3349/ymj.2013.54.4.1062] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
A 32-year old single man presented with azoospermia and low semen volume which was noted one and half a year ago. Transrectal ultrasonography and seminal vesiculography were performed to evaluate ejaculatory duct obstruction, and transurethral resection of the ejaculatory duct was performed using a hybrid technique of holmium:yttriumaluminium garnet laser with monopolar transurethral resection to overcome the narrow prostatic urethra. To our knowledge, this is the first report on the successful outcome of a hybrid technique applied for transurethral resection of the ejaculatory duct.
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Affiliation(s)
- Joo Yong Lee
- Department of Urology, Severance Hospital, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Richilda Red Diaz
- Department of Urology, Severance Hospital, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Young Deuk Choi
- Department of Urology, Severance Hospital, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Kang Su Cho
- Department of Urology, Severance Hospital, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
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10727
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Dynamic MRI Findings and Clinical Features of Benign Hypervascular Hepatic Nodules in Childhood-Cancer Survivors. AJR Am J Roentgenol 2013; 201:178-84. [DOI: 10.2214/ajr.12.9734] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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10728
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Sugimoto K, Moriyasu F, Kono S, Sasaki M, Nakanuma Y, Imai Y. A case of mucinous cystic neoplasm of the liver: description of Sonazoid-enhanced ultrasound imaging and histopathologic findings. J Med Ultrason (2001) 2013; 40:243-50. [PMID: 27277243 DOI: 10.1007/s10396-012-0422-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2012] [Accepted: 11/05/2012] [Indexed: 12/17/2022]
Abstract
Mucinous cystic neoplasms (MCNs) of the hepatobiliary system are rare tumors that usually arise within the liver. We encountered a 63-year-old woman with a surgically proven MCN of the liver. We first performed contrast-enhanced ultrasound imaging, and the mass was found to have the appearance of a solid tumor, showing peripheral nodular enhancement in the arterial and portal phases with persistence of enhancement. The lesion remained enhanced in the post-vascular phase (Kupffer phase). Based on these findings, we incorrectly identified the tumor as a cavernous hemangioma, despite negative findings in computed tomography and magnetic resonance imaging. In our immunohistologic analysis using anti-CD68 antibody, the antibody-positive cells were identified as macrophages. Therefore, the Sonazoid microbubbles could have been retained within these macrophages, resulting in late enhancement. These findings appear to be of key importance in accurately diagnosing MCNs and clarifying their pathophysiology.
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Affiliation(s)
- Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.
| | - Fuminori Moriyasu
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Shin Kono
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Motoko Sasaki
- Department of Human Pathology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - Yasuni Nakanuma
- Department of Human Pathology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - Yasuharu Imai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
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10729
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Laroia ST, Bawa SS, Jain D, Mukund A, Sarin S. Contrast ultrasound in hepatocellular carcinoma at a tertiary liver center: First Indian experience. World J Radiol 2013; 5:229-240. [PMID: 23807901 PMCID: PMC3692961 DOI: 10.4329/wjr.v5.i6.229] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Revised: 09/28/2012] [Accepted: 05/19/2013] [Indexed: 02/06/2023] Open
Abstract
AIM: To assess the role of contrast enhanced ultrasonography in evaluation of hepatocellular carcinoma (HCC) at the first Indian tertiary liver center.
METHODS: Retrospective analysis of contrast enhanced ultrasound (CEUS) examinations over 24 mo for diagnosis, surveillance, characterization and follow up of 50 patients in the context of HCC was performed. The source and indication of referrals, change in referral rate, accuracy and usefulness of CEUS in a tertiary liver center equipped with a 64 slice dual energy computer tomography (CT) and 3 tesla magnetic resonance imaging (MRI) were studied. Sonovue (BR1, Bracco, Italy, a second generation contrast agent) was used for contrast US studies. Contrast enhanced CT/MRI or both were performed in all patients. The findings were taken as a baseline reference and correlation was done with respect to contrast US. Contrast enhanced MRI was performed using hepatocyte specific gadobenate dimeglumine (Gd-BOPTA). Iomeron (400 mg; w/v) was used for dynamic CT examinations.
RESULTS: About 20 (40%) of the examinations were referred from clinicians for characterization of a mass from previous imaging. About 15 (30%) were performed for surveillance in chronic liver disease; 5 (10%) examinations were performed for monitoring lesions after radiofrequency ablation (RFA); 3 (6%) were post trans-arterial chemo-embolization (TACE) assessments and 3 (6%) were patients with h/o iodinated contrast allergy. About 2 (4%) were performed on hemodynamically unstable patients in the intensive care with raised alpha fetoprotein and 2 (4%) patients were claustrophobic. The number of patients referred from clinicians steadily increased from 12 in the first 12 mo of the study to 38 in the last 12 mo. CEUS was able to diagnose 88% of positive cases of HCC as per reference standards. In the surveillance group, specificity was 53.3% vs 100% by CT/MRI. Post RFA and TACE specificity of lesion characterization by CEUS was 100% in single/large mass assessment, similar to CT/MRI. For non HCC lesions such as regenerative and dysplastic nodules, the specificity was 50% vs 90% by CT/MRI. The positive role of CEUS in imaging spectrum of HCC included a provisional urgent diagnosis of an incidentally detected mass. It further led to a decrease in time for further management. A confident diagnosis on CEUS was possible in cases of characterization of an indeterminate mass, in situations where the patient was unfit for CT/MRI, was allergic to iodinated contrast or had claustrophobia, etc. CEUS was also cost effective, radiation free and an easy modality for monitoring post RFA or TACE lesions.
CONCLUSION: CEUS is a valuable augmentation to the practice of ultrasonography, and an irreplaceable modality for confounding cases and interpretation of indeterminate lesions in imaging of HCC.
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10730
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Malpractice claims related to musculoskeletal imaging. Incidence and anatomical location of lesions. Radiol Med 2013; 118:1388-96. [PMID: 23801400 DOI: 10.1007/s11547-013-0953-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Accepted: 04/04/2012] [Indexed: 10/26/2022]
Abstract
PURPOSE Failure to detect lesions of the musculoskeletal system is a frequent cause of malpractice claims against radiologists. MATERIALS AND METHODS We examined all the malpractice claims related to alleged errors in musculoskeletal imaging filed against Italian radiologists over a period of 14 years (1993-2006). RESULTS During the period considered, a total of 416 claims for alleged diagnostic errors relating to the musculoskeletal system were filed against radiologists; of these, 389 (93.5%) concerned failure to report fractures, and 15 (3.6%) failure to diagnose a tumour. CONCLUSIONS Incorrect interpretation of bone pathology is among the most common causes of litigation against radiologists; alone, it accounts for 36.4% of all malpractice claims filed during the observation period. Awareness of this risk should encourage extreme caution and diligence.
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10731
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Rosa GM, Bauckneht M, Masoero G, Mach F, Quercioli A, Seitun S, Balbi M, Brunelli C, Parodi A, Nencioni A, Vuilleumier N, Montecucco F. The vulnerable coronary plaque: update on imaging technologies. Thromb Haemost 2013; 110:706-22. [PMID: 23803753 DOI: 10.1160/th13-02-0121] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Accepted: 06/01/2013] [Indexed: 12/21/2022]
Abstract
Several studies have been carried out on vulnerable plaque as the main culprit for ischaemic cardiac events. Historically, the most important diagnostic technique for studying coronary atherosclerotic disease was to determine the residual luminal diameter by angiographic measurement of the stenosis. However, it has become clear that vulnerable plaque rupture as well as thrombosis, rather than stenosis, triggers most acute ischaemic events and that the quantification of risk based merely on severity of the arterial stenosis is not sufficient. In the last decades, substantial progresses have been made on optimisation of techniques detecting the arterial wall morphology, plaque composition and inflammation. To date, the use of a single technique is not recommended to precisely identify the progression of the atherosclerotic process in human beings. In contrast, the integration of data that can be derived from multiple methods might improve our knowledge about plaque destabilisation. The aim of this narrative review is to update evidence on the accuracy of the currently available non-invasive and invasive imaging techniques in identifying components and morphologic characteristics associated with coronary plaque vulnerability.
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Affiliation(s)
- Gian Marco Rosa
- Fabrizio Montecucco, MD, PhD, Division of Cardiology, Faculty of Medicine, Geneva University Hospital, Avenue de la Roseraie 64, 1211 Geneva 4, Switzerland, Tel.: +41 22 372 71 92, Fax: +41 22 382 72 45, E-mail:
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10732
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Li G, Thomas S, Johnson JJ. Polyphenols from the mangosteen (Garcinia mangostana) fruit for breast and prostate cancer. Front Pharmacol 2013; 4:80. [PMID: 23805102 PMCID: PMC3693070 DOI: 10.3389/fphar.2013.00080] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Accepted: 06/03/2013] [Indexed: 11/30/2022] Open
Abstract
The mangosteen (Garcinia mangostana) is a tropical fruit native to Southeast Asia and has long been reported to contain multiple health promoting properties. This fruit is an abundant source of xanthones, a class of polyphenolic compounds with a distinctive tricyclic aromatic ring system and is largely responsible for its biological activities including anti-cancer activity. Herein we describe the anti-cancer activity and mechanisms of mangosteen polyphenolic xanthones including α-Mangostin against breast cancer and prostate cancer. So far, extracts and individual xanthones have been found to induce apoptosis and inhibit proliferation on cancer cells in vitro and in vivo. Based on the reported findings there is clear evidence that these polyphenols target multiple signaling pathways involved in cell cycle modulation and apoptosis. Further work is required to understand its potential for health promotion and potential drug discovery for prostate and breast cancer chemoprevention.
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Affiliation(s)
- Gongbo Li
- Department of Pharmacy Practice, College of Pharmacy, University of Illinois at Chicago Chicago, IL, USA
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10733
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Kim SI, Kwak HJ, Moon JY, Kim SH, Kim TH, Sohn JW, Shin DH, Park SS, Yoon HJ. Cerebral air embolism following pigtail catheter insertion for pleural fluid drainage. Tuberc Respir Dis (Seoul) 2013; 74:286-90. [PMID: 23814602 PMCID: PMC3695312 DOI: 10.4046/trd.2013.74.6.286] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Revised: 10/23/2012] [Accepted: 01/16/2013] [Indexed: 12/18/2022] Open
Abstract
Pigtail catheter drainage is a common procedure for the treatment of pleural effusion and pneumothorax. The most common complications of pigtail catheter insertion are pneumothorax, hemorrhage and chest pains. Cerebral air embolism is rare, but often fatal. In this paper, we report a case of cerebral air embolism in association with the insertion of a pigtail catheter for the drainage of a pleural effusion. A 67-year-old man is being presented with dyspnea, cough and right-side chest pains and was administered antibiotics for the treatment of pneumonia. The pneumonia failed to resolve and a loculated parapneumonic pleural effusion developed. A pigtail catheter was inserted in order to drain the pleural effusion, which resulted in cerebral air embolism. The patient was administered high-flow oxygen therapy and recovered without any neurologic complications.
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Affiliation(s)
- Sa Il Kim
- Department of Internal Medicine, Hanmaeum Hospital, Changwon, Korea
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10734
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Horie S, Chen R, Li L, Mori S, Kodama T. Contrast-enhanced high-frequency ultrasound imaging of early stage liver metastasis in a preclinical mouse model. Cancer Lett 2013; 339:208-13. [PMID: 23791880 DOI: 10.1016/j.canlet.2013.06.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 05/28/2013] [Accepted: 06/02/2013] [Indexed: 12/21/2022]
Abstract
Monitoring angiogenesis is potentially an effective strategy for the early detection of cancer. In this study, early detection was achieved by evaluating blood vessel density in the liver using a three-dimensional contrast-enhanced high-frequency ultrasound (CE-HFUS) system and Sonazoid microbubbles. Three-dimensional CE-HFUS detected an increase in blood vessel density in the liver after intrasplenic injection of breast tumor cells into mice. The results were in agreement with immunohistochemical analysis of blood vessel density. Three-dimensional CE-HFUS using microbubbles is an attractive, novel approach for the early detection of liver metastases through quantification of new, pathological vascular growth (i.e. tumor angiogenesis).
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Affiliation(s)
- Sachiko Horie
- Graduate School of Biomedical Engineering, Tohoku University, 4-1 Seiryo-machi, Aoba, Sendai, Miyagi 980-8575, Japan; Institute of Development, Aging and Cancer, Tohoku University, 4-1 Seiryo-machi, Aoba, Sendai, Miyagi 980-8575, Japan.
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10735
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Dianat SS, Carter HB, Macura KJ. Performance of multiparametric magnetic resonance imaging in the evaluation and management of clinically low-risk prostate cancer. Urol Oncol 2013; 32:39.e1-10. [PMID: 23787297 DOI: 10.1016/j.urolonc.2013.04.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2013] [Revised: 04/04/2013] [Accepted: 04/04/2013] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The purpose of this article is to review the multiparametric magnetic resonance imaging (mMRI) of the prostate and MR-guided prostate biopsy, and their role in the evaluation and management of men with low-risk prostate cancer. METHODS We performed a literature review based on the MEDLINE database search for publications on the role of mMRI (a) in detection and localization of prostate cancer, prediction of tumor aggressiveness and progression and (b) in guiding targeted prostate biopsy. RESULTS The mMRI, particularly diffusion-weighted imaging with T2-weighted imaging, is a useful tool for tumor localization in low-risk prostate cancer as it can detect lesions that are more likely missed on extended biopsy schemes and can identify clinically significant disease requiring definitive treatment. The MR-guided biopsy of the most suspicious lesions enables more accurate and safer approach to guide enrollment into the active surveillance program. However, the MR-guided biopsy is complex. The fusion of MRI data with transrectal ultrasound for the purpose of biopsy provides a more feasible technique with documented accurate sampling. CONCLUSION Although the mMRI is not routinely used for risk stratification and prognostic assessment in prostate cancer, it can provide valuable information to guide management of men with low-risk disease. Incorporation of mMRI into the workup and monitoring of patients with low-risk prostate cancer can help discriminate clinically significant disease from indolent disease. Targeted biopsy of MR-suspicious lesions enables accurate sampling of potentially aggressive tumors that may affect outcomes.
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Affiliation(s)
- Seyed Saeid Dianat
- The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University, Baltimore, MD
| | - H Ballentine Carter
- The James Buchanan Brady Urological Institute, The Johns Hopkins University, Baltimore, MD
| | - Katarzyna J Macura
- The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University, Baltimore, MD; The James Buchanan Brady Urological Institute, The Johns Hopkins University, Baltimore, MD.
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10736
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Lee TY, Cheon YK, Shim CS. Clinical role of contrast-enhanced harmonic endoscopic ultrasound in differentiating solid lesions of the pancreas: a single-center experience in Korea. Gut Liver 2013; 7:599-604. [PMID: 24073319 PMCID: PMC3782676 DOI: 10.5009/gnl.2013.7.5.599] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 11/02/2012] [Accepted: 11/03/2012] [Indexed: 11/07/2022] Open
Abstract
Background/Aims The differential diagnosis of pancreatic solid lesions remains challenging. The aim of this study was to investigate the accuracy of contrast-enhanced harmonic endoscopic ultrasound (CEH-EUS) in differentiating pancreatic cancer from benign lesions. Methods We prospectively evaluated 37 patients with pancreatic solid lesions. After intravenous injection of a contrast agent (SonoVue), CEH-EUS was performed using a radial echoendoscope. Pancreatic solid lesions were classified into three vascular patterns (hyperintense, isointense, and hypointense) on the basis of CEH-EUS imaging, and these patterns were compared to the histological diagnosis. Results The lesions were hypervascular (n=6), isovascular (n=3), or hypovascular (n=28). Histological diagnosis was confirmed by EUS-FNA in 26 patients (22 adenocarcinomas, two focal pancreatitis, one pancreatic neuroendocrine tumor [NET], and one pancreatic tuberculosis); by surgery in 10 patients (four adenocarcinomas, three pancreatic NETs, two invasive intraductal papillary mucinous neoplasms, and one acinar cell carcinoma); and by both methods in one patient. Among pancreatic carcinomas, 28 out of 30 lesions (93%) had persistent hypovascular signals in the early and late phase, which indicates a sensitivity and diagnostic accuracy of 93% and 92%, respectively for the diagnosis of pancreatic cancer. Conclusions CEH-EUS was useful for characterization of pancreatic solid masses with high sensitivity and accuracy.
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Affiliation(s)
- Tae Yoon Lee
- Digestive Disease Center, Department of Internal Medicine, Konkuk University School of Medicine, Seoul, Korea
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10737
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Roethke MC, Kniess M, Kaufmann S, Lichy MP, Schlemmer HP, Stenzl A, Schilling D. Can high-spatial resolution T2-weighted endorectal MRI rule out clinically significant prostate cancer? World J Urol 2013; 32:379-83. [DOI: 10.1007/s00345-013-1106-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Accepted: 05/23/2013] [Indexed: 12/12/2022] Open
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10738
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Abstract
Systemic air embolism is a very rare (<0.1%) complication of computed tomography-guided transthoracic needle aspiration and can result in serious neurological and/or cardiac sequelae. Stroke and stress cardiomyopathy can have a variety of etiologies; however, an association of Takotsubo cardiomyopathy with cerebrovascular events precipitated by an air embolus has not been reported. We report a patient with stress-induced cardiomyopathy after an air embolus-induced stroke. The patient was managed with hyperbaric oxygenation and her cardiomyopathy was initially treated as per the acute coronary syndrome protocol until coronary angiography confirmed patent arteries. We review the pathophysiology and management recommendations for both events. Prompt recognition of air embolism-induced cerebrovascular events and stress cardiomyopathy by clinicians is imperative to the timely initiation of appropriate management and a successful treatment outcome.
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10739
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Zhang Y, Meng X, Zeng H, Guan Y, Zhang Q, Guo S, Liu X, Guo Q. Serum vascular endothelial growth factor-C levels: A possible diagnostic marker for lymph node metastasis in patients with primary non-small cell lung cancer. Oncol Lett 2013; 6:545-549. [PMID: 24137365 PMCID: PMC3789086 DOI: 10.3892/ol.2013.1373] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Accepted: 05/14/2013] [Indexed: 11/20/2022] Open
Abstract
Accurate tumor staging is essential for selecting the appropriate treatment strategy for lung cancer. Computed tomography (CT), or positron emission tomography (PET), is the most commonly used non-invasive staging method of lymph node (LN) metastases (LNM), but this method remains unsatisfactory. The present study measured vascular endothelial growth factor (VEGF)-C levels in serum, tumor tissue and LNs to determine the correlation between serum VEGF-C and LNM, and also assessed the usefulness of serum VEGF-C as an additional diagnostic marker for identifying LNM. A total of 66 patients with non-small cell lung carcinoma (NSCLC) or benign tumors of the lung were included in this study, and circulating VEGF-C levels were assessed with enzyme-linked immunosorbent assays. RNA fractions extracted from the tumor tissues and LNs were subjected to quantitative polymerase chain reaction (qPCR) to assess the mRNA levels of VEGF-C. The VEGF-C levels in serum, tumor tissue and LNM were significantly higher compared with the control group (P<0.05). The VEGF-C levels of patients with LNM were significantly higher compared with those without LNM (P<0.05). The VEGF-C levels in the serum, tumor tissue and LNM were significantly correlated (P<0.05). With regard to the diagnosis of LNM using VEGF-C levels, the serum levels of VEGF-C reached a sensitivity of 65.0% and a specificity of 72.2% when a cutoff value of 655.65 pg/ml was applied. Serum VEGF-C levels may provide additional information for distinguishing between the absence and presence of LNM in patients with lung carcinoma. The evaluation of serum VEGF-C is complementary to accurate LN staging in NSCLC.
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Affiliation(s)
- Yakun Zhang
- Departments of Medical Oncology, Jinan, Shandong 250117, P.R. China
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10740
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Seif El Dien HM, Abd ElLatif DA. The value of bedside Lung Ultrasonography in diagnosis of neonatal pneumonia. THE EGYPTIAN JOURNAL OF RADIOLOGY AND NUCLEAR MEDICINE 2013. [DOI: 10.1016/j.ejrnm.2013.02.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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10741
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Ko PH, Hung TH, Tseng CW. Severe abdominal pain 2 days after endoscopic treatment. Gastroenterology 2013; 144:1356, 1579. [PMID: 23623875 DOI: 10.1053/j.gastro.2013.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 03/22/2013] [Accepted: 04/09/2013] [Indexed: 12/02/2022]
Affiliation(s)
- Ping-Hung Ko
- Division of Gastroenterology, Department of Medicine, Buddhist Dalin Tzu Chi General Hospital, Chia-Yi, Taiwan
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10742
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Evaluation of the deaths secondary to entrapment under the debris in the Van earthquake. EGYPTIAN JOURNAL OF FORENSIC SCIENCES 2013. [DOI: 10.1016/j.ejfs.2013.02.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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10743
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Dylke ES, McEntee MF, Schembri GP, Brennan PC, Bailey E, Ward LC, Kilbreath SL. Reliability of a radiological grading system for dermal backflow in lymphoscintigraphy imaging. Acad Radiol 2013; 20:758-63. [PMID: 23570659 DOI: 10.1016/j.acra.2013.01.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Revised: 01/14/2013] [Accepted: 01/16/2013] [Indexed: 12/21/2022]
Abstract
RATIONALE AND OBJECTIVES Lymphoscintigraphy may be used for diagnosing secondary lymphedema. Dermal backflow, the presence of radiotracer in dermal lymphatics, is a key clinical feature. Although often reported as present or absent, a scale that assesses the severity of dermal backflow has been previously developed. The aim of this study was to determine the reliability of these two methods of assessment. MATERIALS AND METHODS Sixteen experienced nuclear medicine physicians assessed the quantity of dermal backflow of 57 lymphoscintigraphy scans using a 4-point descriptive scale that was dichotomized for secondary analysis. Each scan included images from four time points for women previously diagnosed with secondary lymphedema (n = 47) and controls (n = 5); five scans were presented twice to examine intraobserver reliability. This was further investigated as 13 physicians viewed the scans again on an Apple iPad2. The physicians rated their confidence in their scoring. Readers were blinded to clinical history. RESULTS Although both the 2- and 4-point scale had moderate interobserver reliability, the reliability of the 2-point scale was slightly higher (4-point: Fleiss κ = .418, standard error [SE] = .008); 2-point: Fleiss κ = .574, SE = .013). Low interobserver reliability was found when only control subjects were considered (Fleiss κ = 0.055, SE = 0.034). Intraobserver reliability of the five repeated images varied from poor to perfect (Cohen κ = .063 to 1.00), whereas moderate to substantial intraobserver reliability (Cohen's κ = .342 to .752) was found when comparing devices. The readers were highly confident of their scores. CONCLUSIONS Overall, moderate intraobserver and interobserver reliability was found for quantifying dermal backflow with both the 2- and 4-point scale.
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10744
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Solak A, Genç B, Yalaz S, Sahin N, Sezer TÖ, Solak I. Abdominal wall endometrioma: ultrasonographic features and correlation with clinical findings. Balkan Med J 2013; 30:155-60. [PMID: 25207093 DOI: 10.5152/balkanmedj.2012.102] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Accepted: 10/17/2012] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND The diagnosis of abdominal wall endometrioma (AWE) is often confused with other surgical conditions. Certain factors relating to knowledge of the clinical history of the disease make correct diagnosis and treatment difficult. AIMS To present the clinical findings and ultrasonographic (US) features of AWE with special emphasis on size-related features. STUDY DESIGN This study reviewed abdominal wall endometriomas during a 2-year period in the Radiology Department of Sifa University Hospital, Izmir. METHODS Eleven women (mean age 32.6 years) with 12 scar endometriomas (mean diameter 29.2 mm) were consecutively evaluated by US and Colour Doppler examination (CDUS) prior to surgery. Lesions were grouped into large (≥3 cm) and small nodules. Vascularisation was classified as location (central, peripheral and mixed) and severity (absent, moderately vascular and hypervascular). In each patient, the nature of pain (absent, cyclic: associated with menstruation and continuous), historical and clinical data were documented. Four patients underwent Magnetic Resonance Imaging and their findings were presented. Fisher's exact test, χ(2) test for categorical data and the unpaired T-test for continuous variables were used for statistical analysis. RESULTS In all the women, US of the AWE showed the presence of a solid hypoechoic mass (less echogenic than the surrounding hyperechoic fat) within the abdominal wall. There was a significant correlation between AWE sizes with repeated caesareans and the mean time between the last operation and admission to hospital (p<0.05). Large endometriomas showed increased central vascularity (p<0.05). Cyclic pain was more frequent in small lesions, whereas continuous pain was more commonly found in patients with larger lesions (p<0.05). CONCLUSION AWE is often misdiagnosed clinically because endometriosis may occur years after the caesarean section, the pain is often non-cyclic in nature, and there is not always a palpable tender mass. The sonographic and Doppler findings, along with proper correlation with clinical data, may substantially contribute to the correct diagnosis of endometrioma.
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Affiliation(s)
- Aynur Solak
- Department of Radiology, Şifa University Faculty of Medicine, İzmir, Turkey
| | - Berhan Genç
- Department of Radiology, Şifa University Faculty of Medicine, İzmir, Turkey
| | - Seyhan Yalaz
- Department of General Surgery, Şifa University Faculty of Medicine, İzmir, Turkey
| | - Neslin Sahin
- Department of Radiology, Şifa University Faculty of Medicine, İzmir, Turkey
| | - Taylan Özgür Sezer
- Department of General Surgery, Ege University Faculty of Medicine, İzmir, Turkey
| | - Ilhami Solak
- Department of General Surgery, Ege University Faculty of Medicine, İzmir, Turkey
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10745
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Young RS, Aldiwani M, Hakeem AR, Nair A, Guthrie A, Wyatt J, Treanor D, Morris-Stiff G, Jones RL, Prasad KR. Pre-liver transplant biopsy in hepatocellular carcinoma: a potential criterion for exclusion from transplantation? HPB (Oxford) 2013; 15:418-27. [PMID: 23458127 PMCID: PMC3664045 DOI: 10.1111/hpb.12008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Accepted: 10/17/2012] [Indexed: 02/07/2023]
Abstract
BACKGROUND In cirrhotic patients with hepatocellular carcinoma (HCC), poor differentiation in pre-liver transplantation (LT) biopsy of the largest tumour is used as a criterion for exclusion from LT in some centres. The potential role of pre-LT biopsy at one centre was explored. METHODS A prospective database of patients undergoing orthotopic LT for radiologically diagnosed HCC at St James's University Hospital, Leeds during 2006-2011 was analysed. RESULTS A total of 60 predominantly male (85.0%) patients with viral hepatitis were identified. There were discrepancies between radiological and histopathological findings with respect to the number of tumours identified (in 27 patients, 45.0%) and their size (in 63 tumours, 64.3%). In four (6.7%) patients, the largest lesion, which would theoretically have been targeted for biopsy, was not the largest in the explant. Nine (31.0%) patients with multifocal HCC had tumours of differing grades. In two (6.9%) patients, the largest tumour was well differentiated, but smaller tumours in the explant were poorly differentiated. In one patient, the largest lesion was benign and smaller invasive tumours were confirmed histologically. CONCLUSIONS The need to optimize selection for LT in HCC remains. In the present series, the largest tumour was not always representative of overall tumour burden or biological aggression and its potential use to exclude patients from LT is questionable.
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Affiliation(s)
- Richard S Young
- Department of Transplant and Hepaticopancreaticobiliary Surgery, St James's University HospitalLeeds, UK
| | - Mohammed Aldiwani
- Department of Transplant and Hepaticopancreaticobiliary Surgery, St James's University HospitalLeeds, UK
| | - Abdul R Hakeem
- Department of Transplant and Hepaticopancreaticobiliary Surgery, St James's University HospitalLeeds, UK
| | - Amit Nair
- Department of Transplant and Hepaticopancreaticobiliary Surgery, St James's University HospitalLeeds, UK
| | - Ashley Guthrie
- Department of Radiology, St James's University HospitalLeeds, UK
| | - Judy Wyatt
- Department of Histology, St James's University HospitalLeeds, UK
| | - Darren Treanor
- Department of Histology, St James's University HospitalLeeds, UK
| | - Gareth Morris-Stiff
- Department of Transplant and Hepaticopancreaticobiliary Surgery, St James's University HospitalLeeds, UK
| | - Rebecca L Jones
- Department of Hepatology, St James's University HospitalLeeds, UK
| | - K Rajendra Prasad
- Department of Transplant and Hepaticopancreaticobiliary Surgery, St James's University HospitalLeeds, UK,Correspondence K. Rajendra Prasad, Department of Transplant and Hepaticopancreaticobiliary Surgery, St James's University Hospital, Beckett Street, Leeds LS9 7TF, UK. Tel: + 44 113 206 5921. Fax: + 44 113 244 8182. E-mail:
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10746
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Unilocular anterior mandibular swelling. Int J Pediatr Otorhinolaryngol 2013; 77:964-71. [PMID: 23571019 DOI: 10.1016/j.ijporl.2013.03.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Revised: 03/11/2013] [Accepted: 03/12/2013] [Indexed: 11/22/2022]
Abstract
PURPOSE To report a rare case of chondromyxoid fibroma, presenting as an unilocular anterior mandibular swelling, which is one of the least common tumours of bone comprising less than 1% of bone tumours and to review the differential diagnosis and literature for a better understanding of this disease as well as addressing the controversies in respect with its treatment. MATERIALS AND METHODS Previous reports about this lesion in literature were reviewed wherein data was recorded about the age, sex, race, location of pathology, presenting signs and symptoms, duration of pathology, size, radiographic findings, treatment and any recurrence on follow-up. RESULTS 25 cases were studied and data compiled. Multisectional histopathological examination is advocated to differentiate it from osteosarcoma. Enucleation with or without curettage with long-term follow-up has been considered to be a satisfactory treatment modality. CONCLUSION The rarity of the lesion, limited data on the clinical presentation, histological dilemma and treatment options replete with controversies make it a tough predicament. A thorough understanding of the disease and treatment options is indispensable to treat such a case.
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10747
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Outcomes Following Fecal Continence Procedures in Patients with Neurogenic Bowel Dysfunction. J Urol 2013; 189:2293-7. [DOI: 10.1016/j.juro.2012.12.052] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Accepted: 12/14/2012] [Indexed: 11/21/2022]
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10748
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Yoshida RDA, Vieira PRB, Yoshida WB, Sobreira ML, Jaldin RG, Zuppardo RL, Moura R. Endovascular Treatment of Hepatic Artery Pseudoaneurysm secondary to an Erosion and Liver Block of Perforated Peptic Ulcer. J Vasc Bras 2013. [DOI: 10.1590/s1677-54492013000200011] [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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10749
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Abstract
This review of lung malignancies in human immunodeficiency virus (HIV) briefly highlights key epidemiologic and clinical features in the pulmonary involvement of AIDS-defining malignancies of Kaposi sarcoma and non-Hodgkin lymphoma. Then, focusing on non-AIDS defining lung cancer, the epidemiology and mechanisms, clinical presentation, pathology, treatment and outcomes, and prevention of HIV-associated lung cancer are discussed. Finally, the important knowledge gaps and future directions for research related to HIV-associated lung malignancies are highlighted.
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Affiliation(s)
- Allison A Lambert
- Department of Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA
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10750
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García Vicente AM, Domínguez Ferreras E, Sánchez Pérez V, Poblete García VM, Villa Guzmán JC, Jiménez Aragón F, Pineda Pineda MD, Molino Trinidad C, Soriano Castrejón Á. Response assessment of colorectal liver metastases with contrast enhanced CT/18F-FDG PET. Eur J Radiol 2013; 82:e255-61. [DOI: 10.1016/j.ejrad.2012.12.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 12/24/2012] [Accepted: 12/26/2012] [Indexed: 01/27/2023]
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