Biomedical imaging and intervention journal最新文献

{"title":"Chest imaging features of patients afflicted with Influenza A (H1N1) in a Malaysian tertiary referral centre.","authors":"Si Bux,&nbsp;N Mohd Ramli,&nbsp;S Ahmad Sarji,&nbsp;A Kamarulzaman","doi":"10.2349/biij.6.4.e35","DOIUrl":"https://doi.org/10.2349/biij.6.4.e35","url":null,"abstract":"<p><p>This is a retrospective descriptive study of the chest imaging findings of 118 patients with confirmed A(H1N1) in a tertiary referral centre. About 42% of the patients had positive initial chest radiographic (CXR) findings. The common findings were bi-basal air-space opacities and perihilar reticular and alveolar infiltrates. In select cases, high-resolution computed tomography (CT) imaging showed ground-glass change with some widespread reticular changes and atelectasis.</p>","PeriodicalId":89331,"journal":{"name":"Biomedical imaging and intervention journal","volume":"6 4","pages":"e35"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3097804/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40109044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Image analysis in medical imaging: recent advances in selected examples.","authors":"G Dougherty","doi":"10.2349/biij.6.3.e32","DOIUrl":"https://doi.org/10.2349/biij.6.3.e32","url":null,"abstract":"<p><p>Medical imaging has developed into one of the most important fields within scientific imaging due to the rapid and continuing progress in computerised medical image visualisation and advances in analysis methods and computer-aided diagnosis. Several research applications are selected to illustrate the advances in image analysis algorithms and visualisation. Recent results, including previously unpublished data, are presented to illustrate the challenges and ongoing developments.</p>","PeriodicalId":89331,"journal":{"name":"Biomedical imaging and intervention journal","volume":"6 3","pages":"e32"},"PeriodicalIF":0.0,"publicationDate":"2010-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2349/biij.6.3.e32","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40107085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Awareness and attitudes amongst basic surgical trainees regarding radiation in orthopaedic trauma surgery.","authors":"Fr Khan,&nbsp;Z Ul-Abadin,&nbsp;S Rauf,&nbsp;A Javed","doi":"10.2349/biij.6.3.e25","DOIUrl":"https://doi.org/10.2349/biij.6.3.e25","url":null,"abstract":"<p><p>This study investigated the awareness and attitudes of basic surgical trainees. Trainees were asked to answer questions from a pre-set questionnaire. Fifty basic surgical trainees from England and Wales were involved in the study. The areas covered were basic knowledge of radiation hazards, use of protective wear, pregnancy test in female trauma victims of reproductive age, and principles of safe radiation. All the questions were asked in the context of orthopaedic trauma surgery. All questions were evidence based.It was unfortunate to notice that basic surgical trainees are lacking in the essential knowledge of ionising radiation. Most of the trainees are not adhering to radiation safety principle, and are not practising safely. The authors strongly recommend that surgical trainees should have more robust training and information available in this context. And they suggest that it should be provided on local, regional and national basis. © 2010 Biomedical Imaging and Intervention Journal. All rights reserved.</p>","PeriodicalId":89331,"journal":{"name":"Biomedical imaging and intervention journal","volume":"6 3","pages":"e25"},"PeriodicalIF":0.0,"publicationDate":"2010-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2349/biij.6.3.e25","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40108514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Uterine artery embolisation for symptomatic fibroids: the University of Malaya Medical Centre experience.","authors":"Rn Subramaniam, A Vijayananthan, Sz Omar, O Nawawi, Bjj Abdullah","doi":"10.2349/biij.6.3.e27","DOIUrl":"10.2349/biij.6.3.e27","url":null,"abstract":"<p><strong>Background: </strong>Transcatheter uterine artery embolisation (UAE) for the treatment of symptomatic fibroids has been performed in several centres in the United States, Western Europe and Asia with promising results. This study reports the authors' experience with UAE at the University Malaya Medical Centre.</p><p><strong>Method: </strong>Fifty women with symptomatic uterine fibroids who declined surgery were treated by transcatheter UAE. The uterine arteries were selectively catheterised and embolised with polyvinyl alcohol particles. Post-procedure analgesia was administered via patient-controlled analgesic pump. The patients were followed up at an interval of 6/12 clinically and with MRI.</p><p><strong>Results: </strong>Transcatheter UAE was performed on all 50 patients with no major complications. 49 patients had both uterine arteries embolised while 1 patient had only the right uterine artery embolised on account of hypoplasia of the left uterine artery due to previous myomectomy. The mean hospital stay was 3.5 days (range, 2 to 7). At a mean follow-up of 24/52, all patients reported improvements in their presenting symptoms. Objective improvement in terms of reduction of uterine and fibroid sizes was determined on MRI. One patient, who initially responded with a decrease in uterine and dominant fibroid size, became symptomatic (menorrhagia) after 6 months and subsequent endometrial sampling revealed cystic glandular hyperplasia for which total abdominal hysterectomy was performed. Two other patients had no change in symptoms and after hysterectomy, the pathology revealed concurrent adenomyosis. Another 2 patients with cervical fibroids were treated with hysterectomy as there was no gross reduction in the size of fibroid following UAE. Overall, 90% of the patients had dramatic improvement of anaemia and symptoms at 1 year follow-up.</p><p><strong>Conclusion: </strong>Out of the 50 patients, 17 patients had total disappearance of their fibroids and 28 patients had more than 50% reduction in the size of fibroids after 1 year. 5 patients ended up with total abdominal hysterectomy. These results suggest that UAE is an appealing alternative to hysterectomy or myomectomy for many women with symptomatic fibroids.</p>","PeriodicalId":89331,"journal":{"name":"Biomedical imaging and intervention journal","volume":"6 3","pages":"e27"},"PeriodicalIF":0.0,"publicationDate":"2010-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3097770/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40108516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Induction chemotherapy with paclitaxel, ifosfamide, and cisplatin followed by concurrent chemoradiotherapy for unresectable locally advanced head and neck cancer.","authors":"I Chitapanarux,&nbsp;E Tharavichitkul,&nbsp;V Lorvidhaya,&nbsp;P Sittitrai,&nbsp;T Pattarasakulchai","doi":"10.2349/biij.6.3.e23","DOIUrl":"https://doi.org/10.2349/biij.6.3.e23","url":null,"abstract":"<p><strong>Objective: </strong>Induction chemotherapy (IC) and concurrent chemoradiotherapy (CCRT) for locally advanced head and neck cancer has been studied in many clinical trials. This study was conducted to determine the response rate of IC with paclitaxel, ifosfamide, and cisplatin followed by CCRT with cisplatin for this group of patients, and the effect of the entire treatment on survival and time to disease progression.</p><p><strong>Methods: </strong>Thirty patients with advanced and unresectable head and neck cancer were treated with 2 cycles of induction paclitaxel/ ifosfamide/ cisplatin. If the primary tumor had a complete or partial response, patients were treated with 2 more cycles of IC followed by radiotherapy 70 Gy plus 3 cycles of cisplatin. For those with less than partial response or disease progression were treated according to the discretion of the physicians.</p><p><strong>Results: </strong>Ninety percent of patients had stage IV disease and 40% of them had primary tumor at maxillary sinus and nasal cavity. One patient (3%) achieved complete response (CR) and 18 patients had partial responses (PR) to IC. CCRT enhanced the response rate, resulting in a total of 3 CR (10%) and 16 PR (53%) to treatment. The median time to progression was 11.5 months. The median overall survival was 27 months. The most severe hematologic toxicity occurred during IC was grade3-4 neutropenia (40%). Grade 3-4 mucositis occurred in 68% of patients during CCRT.</p><p><strong>Conclusion: </strong>This novel combined-modality treatment program, is toxic but feasible, and can be administered for selected patients with advanced and unresectable head and neck cancer. © 2010 Biomedical Imaging and Intervention Journal. All rights reserved.</p>","PeriodicalId":89331,"journal":{"name":"Biomedical imaging and intervention journal","volume":"6 3","pages":"e23"},"PeriodicalIF":0.0,"publicationDate":"2010-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2349/biij.6.3.e23","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40108513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimal slice thickness for cone-beam CT with on-board imager.","authors":"Kyt Seet, A Barghi, S Yartsev, J Van Dyk","doi":"10.2349/biij.6.3.e31","DOIUrl":"10.2349/biij.6.3.e31","url":null,"abstract":"<p><strong>Purpose: </strong>To find the optimal slice thickness (Δτ) setting for patient registration with kilovoltage cone-beam CT (kVCBCT) on the Varian On Board Imager (OBI) system by investigating the relationship of slice thickness to automatic registration accuracy and contrast-to-noise ratio.</p><p><strong>Materials and method: </strong>Automatic registration was performed on kVCBCT studies of the head and pelvis of a RANDO anthropomorphic phantom. Images were reconstructed with 1.0 ≤ Δτ (mm) ≤ 5.0 at 1.0 mm increments. The phantoms were offset by a known amount, and the suggested shifts were compared to the known shifts by calculating the residual error. A uniform cylindrical phantom with cylindrical inserts of various known CT numbers was scanned with kVCBCT at 1.0 ≤ Δτ (mm) ≤ 5.0 at increments of 0.5 mm. The contrast-to-noise ratios for the inserts were measured at each Δτ.</p><p><strong>Results: </strong>For the planning CT slice thickness used in this study, there was no significant difference in residual error below a threshold equal to the planning CT slice thickness. For Δτ > 3.0 mm, residual error increased for both the head and pelvis phantom studies. The contrast-to-noise ratio is proportional to slice thickness until Δτ = 2.5 mm. Beyond this point, the contrast-to-noise ratio was not affected by Δτ.</p><p><strong>Conclusion: </strong>Automatic registration accuracy is greatest when 1.0 ≤ Δτ (mm) ≤ 3.0 is used. Contrast-to-noise ratio is optimal for the 2.5 ≤ Δτ (mm) ≤ 5.0 range. Therefore 2.5 ≤ Δτ (mm) ≤ 3.0 is recommended for kVCBCT patient registration where the planning CT is 3.0 mm.</p>","PeriodicalId":89331,"journal":{"name":"Biomedical imaging and intervention journal","volume":"6 3","pages":"e31"},"PeriodicalIF":0.0,"publicationDate":"2010-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3097776/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40107082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"F-FDG PET/CT as a potential valuable adjunct to MRI in characterising the Brodie's abscess.","authors":"F Fathinul,&nbsp;Aj Nordin","doi":"10.2349/biij.6.3.e26","DOIUrl":"https://doi.org/10.2349/biij.6.3.e26","url":null,"abstract":"<p><p>Chronic osteomyelitis (Brodie's abscess) is essentially a problem of diagnosis, and there may be considerable difficulty in distinguishing it from other benign and malignant bone lesions. Early diagnosis of Brodie's abscess is deemed important as the disease has a good curative potential following an appropriate antibiotic treatment. Of late, PET/CT using (18)F-FDG is taking a centre stage in the imaging of bone infection though documentation on its role in characterising the feature of Brodie's abscess is exceedingly scarce. On the other hand, it is well known that MRI imaging plays a very important role in distinguishing abscess loculation from malignancy. The authors present the case of a 13-year-old boy with pain in the right heel for few months. Radiograph of the right foot revealed a lucent focus with sclerotic margin in the right calcaneum. MRI T1-weighted images were inconclusive of penumbra sign to characterise abscess cavity due to the small volume lesion. Whole-body (18)F-FDG PET/CT scan showed multiple small avid lesions at the margin of the sclerotic rim in the right calcaneum. Final diagnosis of Brodie's abscess with Klebsiella culture was confirmed via bone debridement.</p>","PeriodicalId":89331,"journal":{"name":"Biomedical imaging and intervention journal","volume":"6 3","pages":"e26"},"PeriodicalIF":0.0,"publicationDate":"2010-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2349/biij.6.3.e26","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40108515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Overuse, overdose, overdiagnosis… overreaction?","authors":"Elm Ho","doi":"10.2349/biij.6.3.e8","DOIUrl":"https://doi.org/10.2349/biij.6.3.e8","url":null,"abstract":"<p><p>When x-rays were first discovered, the harmful effects of radiation had to be manifest in the early users before they were known. Today, radiation protection and safety have been established and the effects of radiation, as well as its risks, are known. Even so, medical radiation, in particular the growth in the use of computed tomography (CT), has resulted in soaring radiation doses received by the population in general. Inappropriate use has resulted in overuse, overdose and, perhaps, overdiagnosis, especially when used in screening. In the quest to control and curb the use of procedures involving radiation, however, we must be careful not to provoke a pandemic of irrational fear of radiation. Overreaction to the overuse and overdose of radiation might deter patients from life-saving procedures.</p>","PeriodicalId":89331,"journal":{"name":"Biomedical imaging and intervention journal","volume":"6 3","pages":"e8"},"PeriodicalIF":0.0,"publicationDate":"2010-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2349/biij.6.3.e8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40107086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mammographic and ultrasonographic features of invasive lobular carcinoma: a review of 16 patients","authors":"M. Muttarak, S. Sangchan, P. Kongmebhol, N. Sukhamwang, B. Chaiwun","doi":"10.2349/BIIJ.6.3.E21","DOIUrl":"https://doi.org/10.2349/BIIJ.6.3.E21","url":null,"abstract":"","PeriodicalId":89331,"journal":{"name":"Biomedical imaging and intervention journal","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2010-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2349/BIIJ.6.3.E21","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68770978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aortic dissection: Identification of entry site with CT virtual intravascular endoscopy","authors":"Zhonghua Sun, Y. Cao, Y. Shang, B. Jiang, X. Ma","doi":"10.2349/BIIJ.6.3.E22","DOIUrl":"https://doi.org/10.2349/BIIJ.6.3.E22","url":null,"abstract":"Aortic dissection is a common vascular disease which has high morbidity and mortality if it presents with acuteonset. Early diagnosis, characterisation of the type of dissection and identification of intimal tear (entry site) is important for patient management. CT angiography, especially with widely-used multislice CT imaging technique, is the method of choice for diagnosis of aortic dissection. This article presents the additional value of 3D visualisation, using virtual intravascular endoscopy, for assessment of aortic dissection when compared to conventional 2D views. The article focuses particularly on identifying the entry site of dissection with the aid of virtual intravascular endoscopy in three selected cases. It is expected that the intraluminal findings will assist radiologists to accurately diagnose and treat patients with suspected aortic dissection.","PeriodicalId":89331,"journal":{"name":"Biomedical imaging and intervention journal","volume":"6 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2010-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2349/BIIJ.6.3.E22","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68771038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}