Pub Date : 2017-01-01DOI: 10.14303/IMAGING-MEDICINE.1000059
S. Parsa
Thank you very much for giving me the chance to present my point of view about the method of calculating liver size: Size of the liver is a significant indicator for recognition of illness in liver. Size of liver is also very important in planning surgery and treatments of liver. The liver has multiple functions, and many illnesses are caused by hepatomegaly. There are many methods to determine liver size; area. Liver volume is a better measure to represents the entire liver, rather than linear measurements in x, y plan. MRI and CT are both valid in the determination of liver volume; however, they are expensive to perform. CT scan has also x-ray which causes risk of cancer [1].
{"title":"Algorithm and software to determine anenlarged liver using reliable and validmeasurements","authors":"S. Parsa","doi":"10.14303/IMAGING-MEDICINE.1000059","DOIUrl":"https://doi.org/10.14303/IMAGING-MEDICINE.1000059","url":null,"abstract":"Thank you very much for giving me the chance to present my point of view about the method of calculating liver size: Size of the liver is a significant indicator for recognition of illness in liver. Size of liver is also very important in planning surgery and treatments of liver. The liver has multiple functions, and many illnesses are caused by hepatomegaly. There are many methods to determine liver size; area. Liver volume is a better measure to represents the entire liver, rather than linear measurements in x, y plan. MRI and CT are both valid in the determination of liver volume; however, they are expensive to perform. CT scan has also x-ray which causes risk of cancer [1].","PeriodicalId":13333,"journal":{"name":"Imaging in Medicine","volume":"175 1","pages":"65-66"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73947483","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}
Pub Date : 2017-01-01DOI: 10.14303/IMAGING-MEDICINE.1000063
Sanjib K. Das
We present a case of incidentally detected renal replacement lipomatosis in an Indian patient of 90 years who presented to us for chest evaluation. On Chest X-ray, we didn't find any chest abnormality except scoliosis. A staghorn calculus of size 5.5*3.7 cm was noted in left kidney for which a noncontrast CT scan was ordered. NCCT revealed a staghorn calculus in left renal pelvis with replacement lipomatosis, atrophic cortical parenchyma and patchy areas of low attenuation in renal parenchyma.
{"title":"A rare case of incidentally detected renal replacement lipomatosis","authors":"Sanjib K. Das","doi":"10.14303/IMAGING-MEDICINE.1000063","DOIUrl":"https://doi.org/10.14303/IMAGING-MEDICINE.1000063","url":null,"abstract":"We present a case of incidentally detected renal replacement lipomatosis in an Indian patient of 90 years who presented to us for chest evaluation. On Chest X-ray, we didn't find any chest abnormality except scoliosis. A staghorn calculus of size 5.5*3.7 cm was noted in left kidney for which a noncontrast CT scan was ordered. NCCT revealed a staghorn calculus in left renal pelvis with replacement lipomatosis, atrophic cortical parenchyma and patchy areas of low attenuation in renal parenchyma.","PeriodicalId":13333,"journal":{"name":"Imaging in Medicine","volume":"19 1","pages":"77-79"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82473879","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}
Pub Date : 2017-01-01DOI: 10.14303/IMAGING-MEDICINE.1000068
Boaz Arnon, Kahana Oria, Y. Arieli
Clinical thermal imaging is based on the postulation that cancerous tissue is warmer due to enhanced metabolism and increased blood supply. The thermal map of a skin is obtained by imaging the skin by a thermal camera where the amounts of heat energy received by the camera's detectors are interpreted in terms of a distribution of the skin temperature. However, it is well known that the amount of heat energy emitted by a surface also depends on the emissivity of the surface. Theoretical and experimental results have shown that the emissivity depends on the viewing angle of the surface, i.e., the angle between the imaging axis and the normal to the surface. These results indicate a significant fall in the emissivity when the viewing angle is increased beyond 60°, which leads to inaccurate temperature mapping. In our study, several human bodies were thermal mapped in incrementally varying angle from 0° to 90° and the thermal maps were compared. The acquired experimental data was processed to obtain a correction formula for calibrating the measurement error due to the emissivity dependence on the viewing angle. Using the correction formula, the measurements at different viewing angles were calibrated, compared and statistically tested to assess the empirical correction formula.
{"title":"Correction of the angular emissivity ofhuman skin for clinical thermal imaging","authors":"Boaz Arnon, Kahana Oria, Y. Arieli","doi":"10.14303/IMAGING-MEDICINE.1000068","DOIUrl":"https://doi.org/10.14303/IMAGING-MEDICINE.1000068","url":null,"abstract":"Clinical thermal imaging is based on the postulation that cancerous tissue is warmer due to enhanced metabolism and increased blood supply. The thermal map of a skin is obtained by imaging the skin by a thermal camera where the amounts of heat energy received by the camera's detectors are interpreted in terms of a distribution of the skin temperature. However, it is well known that the amount of heat energy emitted by a surface also depends on the emissivity of the surface. Theoretical and experimental results have shown that the emissivity depends on the viewing angle of the surface, i.e., the angle between the imaging axis and the normal to the surface. These results indicate a significant fall in the emissivity when the viewing angle is increased beyond 60°, which leads to inaccurate temperature mapping. In our study, several human bodies were thermal mapped in incrementally varying angle from 0° to 90° and the thermal maps were compared. The acquired experimental data was processed to obtain a correction formula for calibrating the measurement error due to the emissivity dependence on the viewing angle. Using the correction formula, the measurements at different viewing angles were calibrated, compared and statistically tested to assess the empirical correction formula.","PeriodicalId":13333,"journal":{"name":"Imaging in Medicine","volume":"1 1","pages":"103-108"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90723958","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}
Pub Date : 2017-01-01DOI: 10.14303/IMAGING-MEDICINE.1000065
Wessam AbdelrahmanElzayat, Mona ElKalioubie, M. Hassan
Background: Laparoscopic greater curve gastric plication (LGCP) surgery recently emerged as a new bariatric procedure, currently marketed for weight reduction especially in poor developing countries. Objective: The objective of this pilot study was to present initial results of correlation between CT volumetric variations in the residual gastric pouch following LGCP with weight loss in morbidly obese Egyptian patients over a one-year follow-up period. Patients & methods: Forty morbidly obese females (mean age 33.8 +/- 9.1) underwent LGCP. Abdominal multi-slice computed tomography (MSCT) was done, immediately after oral administration of effervescent granules at 1 & 12 months postoperatively. Gastric pouch volumes were measured on 3-dimensional (3-D) masks and correlated with weight loss. Results: All surgeries were performed safely with significant decrease in the mean weight at 1 year follow-up relative to mean pre-operative weight (p=0.0010) and 1 month post-operative weight (p=0.0091). CT evaluation of gastric volumes following LGCP was successful in all cases. The mean CT volume of the gastric pouch at 1 year followup showed significant increase relative to mean volume at 1 month post-operative (p=0.0024). After 1 year, a non significant weak negative correlation was found between the percentage of gastric pouch volume increase and the percentage of weight loss (r=-0.0656, p=0.86). Conclusion: LGCP is safe and successful in achieving significant weight loss in obese Egyptian patients at a low cost. 3-D MSCT volumetry allows non-invasive, important anatomical evaluation, helpful in the postoperative follow-up. Further evaluations with greater samples and longer follow-up will help confirm clinical relevance.
{"title":"Role of CT volumetry following gastricplication surgery in morbid obesity:Initial experience in correlatingpostoperative gastric pouch volumewith clinical weight loss","authors":"Wessam AbdelrahmanElzayat, Mona ElKalioubie, M. Hassan","doi":"10.14303/IMAGING-MEDICINE.1000065","DOIUrl":"https://doi.org/10.14303/IMAGING-MEDICINE.1000065","url":null,"abstract":"Background: Laparoscopic greater curve gastric plication (LGCP) surgery recently emerged as a new bariatric procedure, currently marketed for weight reduction especially in poor developing countries. Objective: The objective of this pilot study was to present initial results of correlation between CT volumetric variations in the residual gastric pouch following LGCP with weight loss in morbidly obese Egyptian patients over a one-year follow-up period. Patients & methods: Forty morbidly obese females (mean age 33.8 +/- 9.1) underwent LGCP. Abdominal multi-slice computed tomography (MSCT) was done, immediately after oral administration of effervescent granules at 1 & 12 months postoperatively. Gastric pouch volumes were measured on 3-dimensional (3-D) masks and correlated with weight loss. Results: All surgeries were performed safely with significant decrease in the mean weight at 1 year follow-up relative to mean pre-operative weight (p=0.0010) and 1 month post-operative weight (p=0.0091). CT evaluation of gastric volumes following LGCP was successful in all cases. The mean CT volume of the gastric pouch at 1 year followup showed significant increase relative to mean volume at 1 month post-operative (p=0.0024). After 1 year, a non significant weak negative correlation was found between the percentage of gastric pouch volume increase and the percentage of weight loss (r=-0.0656, p=0.86). Conclusion: LGCP is safe and successful in achieving significant weight loss in obese Egyptian patients at a low cost. 3-D MSCT volumetry allows non-invasive, important anatomical evaluation, helpful in the postoperative follow-up. Further evaluations with greater samples and longer follow-up will help confirm clinical relevance.","PeriodicalId":13333,"journal":{"name":"Imaging in Medicine","volume":"1 1","pages":"89-94"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89713407","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}
Pub Date : 2017-01-01DOI: 10.14303/IMAGING-MEDICINE.1000050
L. Phillips
{"title":"Pathologic fracture of the proximal tibiathrough a bone graft donor site","authors":"L. Phillips","doi":"10.14303/IMAGING-MEDICINE.1000050","DOIUrl":"https://doi.org/10.14303/IMAGING-MEDICINE.1000050","url":null,"abstract":"","PeriodicalId":13333,"journal":{"name":"Imaging in Medicine","volume":"56 1","pages":"11"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82301109","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}
Pub Date : 2017-01-01DOI: 10.14303/Imaging-Medicine.1000047
B. Parmar, A. Chaudhry, B. Weiner, E. Sabonghy, R. TasciottiERighetti
We report preliminary results on the use of ultrasound imaging techniques for real-time assessment of intact bones and bones with different types of fractures in animal samples ex vivo. Methods: Twenty-three cases of intact tibias and sixteen cases of fractured tibias obtained from rabbit, chicken and sheep samples were 2D and 3D scanned using a Sonix RP diagnostic ultrasound system and the results were statistically analyzed. Results: We report representative 2D and 3D results obtained for intact and fractured tibias in selected ex vivo rabbit, chicken and sheep animal samples. In selected cases, X-rays and CT data are also reported for a visual comparison with the ultrasound images. These preliminary results suggest that 2D and 3D real-time ultrasound imaging techniques have the potential to provide non-invasive and fast visualization of cortical defects in different types of bones. Conclusion: This study indicates that ultrasound imaging techniques can be used for a prompt assessment of bone defects including fractures and controlled defects. Off-line, more advanced image processing and analysis techniques can be used to further refine and improve the quality of the 3D ultrasound images especially in the case of bones located in deep tissues.
{"title":"Real-time ultrasound imaging of complex skeletal defects and fractures Preliminary results","authors":"B. Parmar, A. Chaudhry, B. Weiner, E. Sabonghy, R. TasciottiERighetti","doi":"10.14303/Imaging-Medicine.1000047","DOIUrl":"https://doi.org/10.14303/Imaging-Medicine.1000047","url":null,"abstract":"We report preliminary results on the use of ultrasound imaging techniques for real-time assessment of intact bones and bones with different types of fractures in animal samples ex vivo. Methods: Twenty-three cases of intact tibias and sixteen cases of fractured tibias obtained from rabbit, chicken and sheep samples were 2D and 3D scanned using a Sonix RP diagnostic ultrasound system and the results were statistically analyzed. Results: We report representative 2D and 3D results obtained for intact and fractured tibias in selected ex vivo rabbit, chicken and sheep animal samples. In selected cases, X-rays and CT data are also reported for a visual comparison with the ultrasound images. These preliminary results suggest that 2D and 3D real-time ultrasound imaging techniques have the potential to provide non-invasive and fast visualization of cortical defects in different types of bones. Conclusion: This study indicates that ultrasound imaging techniques can be used for a prompt assessment of bone defects including fractures and controlled defects. Off-line, more advanced image processing and analysis techniques can be used to further refine and improve the quality of the 3D ultrasound images especially in the case of bones located in deep tissues.","PeriodicalId":13333,"journal":{"name":"Imaging in Medicine","volume":"28 1","pages":"19-28"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80084114","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}
Pub Date : 2017-01-01DOI: 10.14303/IMAGING-MEDICINE.1000085
M. Tengowski, Thomas Fuerst Claude B Sirlin
With an increasing insulin resistance and obesity epidemic, various intervention trials aiming to reduce liver fat levels are using non-invasive MRI methods as alternatives to repeated biopsies to measure the changes in liver fat levels in controlled clinical trials. MRI and MRS exploit differences in the resonance frequencies of signals from protons in fat and water to quantify liver, fat depot and/or muscle fractional fat content in a highly reproducible manner. Various clinical trials have reported the baseline liver fat values and ranges along with the changes in fat levels following different surgical, nutritional, lifestyle or pharmaceutical interventions.
{"title":"Magnetic resonance imaging fatty liver changes following surgical, lifestyle or drug treatments in obese, non-alcoholicfatty liver disease or non-alcoholic steatohepatitis subjects","authors":"M. Tengowski, Thomas Fuerst Claude B Sirlin","doi":"10.14303/IMAGING-MEDICINE.1000085","DOIUrl":"https://doi.org/10.14303/IMAGING-MEDICINE.1000085","url":null,"abstract":"With an increasing insulin resistance and obesity epidemic, various intervention trials aiming to reduce liver fat levels are using non-invasive MRI methods as alternatives to repeated biopsies to measure the changes in liver fat levels in controlled clinical trials. MRI and MRS exploit differences in the resonance frequencies of signals from protons in fat and water to quantify liver, fat depot and/or muscle fractional fat content in a highly reproducible manner. Various clinical trials have reported the baseline liver fat values and ranges along with the changes in fat levels following different surgical, nutritional, lifestyle or pharmaceutical interventions.","PeriodicalId":13333,"journal":{"name":"Imaging in Medicine","volume":"1 1","pages":"195-214"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76815280","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}
Pub Date : 2017-01-01DOI: 10.14303/IMAGING-MEDICINE.1000074
C. Aguilar, Fidel Rampersad Aaron Baldeo Singh
We present a case study of a 30 year old female patient who experienced excessive retching and vomiting. This occurred after receiving oral fluids 5h after receiving general anaesthetic for an elective orthopaedic surgical procedure (open reduction and internal fixation for a right proximal radial fracture). The pre-procedure chest radiograph prior to surgery was normal. A chest radiograph performed 6 hours after extubation showed significant subcutaneous emphysema within the neck and upper chest, as well as pneumomediastinum. There was no evidence of oesophageal rupture on water-soluble contrast swallow. Multislice CT chest confirmed the presence of subcutaneous emphysema in the neck and chest and pneumomediastinum. Tracheal rupture was also demonstrated on CT and confirmed on flexible bronchoscopy. The patient had conservative management. Repeat flexible bronchoscopy approximately two weeks later showed healing of the tracheal tear. Repeat chest radiograph, two weeks later, showed no residual pneumomediastinum and almost complete resolution of the subcutaneous emphysema.
{"title":"The radiological features of tracheal rupture following endotracheal intubation","authors":"C. Aguilar, Fidel Rampersad Aaron Baldeo Singh","doi":"10.14303/IMAGING-MEDICINE.1000074","DOIUrl":"https://doi.org/10.14303/IMAGING-MEDICINE.1000074","url":null,"abstract":"We present a case study of a 30 year old female patient who experienced excessive retching and vomiting. This occurred after receiving oral fluids 5h after receiving general anaesthetic for an elective orthopaedic surgical procedure (open reduction and internal fixation for a right proximal radial fracture). The pre-procedure chest radiograph prior to surgery was normal. A chest radiograph performed 6 hours after extubation showed significant subcutaneous emphysema within the neck and upper chest, as well as pneumomediastinum. There was no evidence of oesophageal rupture on water-soluble contrast swallow. Multislice CT chest confirmed the presence of subcutaneous emphysema in the neck and chest and pneumomediastinum. Tracheal rupture was also demonstrated on CT and confirmed on flexible bronchoscopy. The patient had conservative management. Repeat flexible bronchoscopy approximately two weeks later showed healing of the tracheal tear. Repeat chest radiograph, two weeks later, showed no residual pneumomediastinum and almost complete resolution of the subcutaneous emphysema.","PeriodicalId":13333,"journal":{"name":"Imaging in Medicine","volume":"16 1","pages":"139-141"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88783896","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}
Pub Date : 2017-01-01DOI: 10.14303/IMAGING-MEDICINE.1000069
M. Adoui, S. Drisis, M. A. Larhmam, Marc Lemort Mohammed Benjelloun
Purpose: Breast tumor structure contains a high degree of heterogeneity. This heterogeneity has been correlated with the level of tumor response to neoadjuvant chemotherapy. A significant number of studies using magnetic resonance imaging have looked into the quantification of intra tumor heterogeneity in breast cancer. Nevertheless, a limited number of these studies have specifi-cally looked at evaluating breast cancer heterogeneity as a biomarker of response to treatment. Methods: In this paper, several heterogeneity quantification methods, which have studied breast cancer response to treatment through MR images, will be presented. Important methodological and technological techniques using experimental design, such as histogram analysis, texture analysis and parametric response mapping (PRM), will be explored. Results: Data acquisition, the number of patients, the number of treatment cycles, and other analysis will be discussed for each presented research case. Furthermore, some proposed methods will be evaluated on our institution MRI dataset, collected between 2013 and 2016. Conclusion: This paper can be used as a guideline for investigators working on breast cancer het-erogeneity as a biomarker of response to treatment.
{"title":"Breast Cancer Heterogeneity Analysis as Index of Response to Treatment Using MRI Images: A Review","authors":"M. Adoui, S. Drisis, M. A. Larhmam, Marc Lemort Mohammed Benjelloun","doi":"10.14303/IMAGING-MEDICINE.1000069","DOIUrl":"https://doi.org/10.14303/IMAGING-MEDICINE.1000069","url":null,"abstract":"Purpose: Breast tumor structure contains a high degree of heterogeneity. This heterogeneity has been correlated with the level of tumor response to neoadjuvant chemotherapy. A significant number of studies using magnetic resonance imaging have looked into the quantification of intra tumor heterogeneity in breast cancer. Nevertheless, a limited number of these studies have specifi-cally looked at evaluating breast cancer heterogeneity as a biomarker of response to treatment. Methods: In this paper, several heterogeneity quantification methods, which have studied breast cancer response to treatment through MR images, will be presented. Important methodological and technological techniques using experimental design, such as histogram analysis, texture analysis and parametric response mapping (PRM), will be explored. Results: Data acquisition, the number of patients, the number of treatment cycles, and other analysis will be discussed for each presented research case. Furthermore, some proposed methods will be evaluated on our institution MRI dataset, collected between 2013 and 2016. Conclusion: This paper can be used as a guideline for investigators working on breast cancer het-erogeneity as a biomarker of response to treatment.","PeriodicalId":13333,"journal":{"name":"Imaging in Medicine","volume":"5 1","pages":"109-119"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90866934","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：