{"title":"Isolated Blaschkitis: An unusual cutaneous presentation of male systemic\u0000lupus erythematous","authors":"","doi":"10.36879/jcmi.19.000115","DOIUrl":"https://doi.org/10.36879/jcmi.19.000115","url":null,"abstract":"","PeriodicalId":91401,"journal":{"name":"SM journal of clinical and medical imaging","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78563550","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":"Breast large B-cell lymphoma: An exceptional mammary neoplasm","authors":"","doi":"10.36879/jcmi.19.000114","DOIUrl":"https://doi.org/10.36879/jcmi.19.000114","url":null,"abstract":"","PeriodicalId":91401,"journal":{"name":"SM journal of clinical and medical imaging","volume":"275 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82818456","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":"Large and aggressive ameloblastic fibro-odontoma of the maxilla in adult","authors":"","doi":"10.36879/jcmi.19.000113","DOIUrl":"https://doi.org/10.36879/jcmi.19.000113","url":null,"abstract":"","PeriodicalId":91401,"journal":{"name":"SM journal of clinical and medical imaging","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87970480","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":"The “double wall” sign: A helpful sign for the diagnosis of orbital hydatidosis","authors":"","doi":"10.36879/jcmi.19.000112","DOIUrl":"https://doi.org/10.36879/jcmi.19.000112","url":null,"abstract":"","PeriodicalId":91401,"journal":{"name":"SM journal of clinical and medical imaging","volume":"50 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83748887","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":"Exceptional etiology of recurrent epistaxis: The giant prolactinoma","authors":"","doi":"10.36879/jcmi.19.000111","DOIUrl":"https://doi.org/10.36879/jcmi.19.000111","url":null,"abstract":"","PeriodicalId":91401,"journal":{"name":"SM journal of clinical and medical imaging","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86178674","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":"Atypical infra-renal aortic dissection","authors":"","doi":"10.36879/jcmi.18.000109","DOIUrl":"https://doi.org/10.36879/jcmi.18.000109","url":null,"abstract":"","PeriodicalId":91401,"journal":{"name":"SM journal of clinical and medical imaging","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86738466","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}
Background: The use of ultrasound to perform quantitative musculoskeletal (MSK) measurements requires reliability among different providers with varied levels of experience and training. Recent studies have shown that physical therapists (PT) can reliably measure the glenohumeral joint space using ultrasound imaging (USI) and operator experience or well defined training protocols influences the reliability. Few studies have reported the reliability of medial knee gap measurements with USI. Objective: Evaluate inter- and intra-rater reliability of a novel approach to measuring knee gapping using experienced and trained novice clinicians. Design: Inter-rater and intra-rater reliability study Setting: Physical therapy program Participants: Novice researchers were three upper-year Doctor of Physical Therapy students. Experienced researchers were two PT certified in MSK USI with eight years of experience. Methods: A total of 166 images of two subject’s medial knee joint gaps were captured in resting by a single experience researcher. Three novice researchers, who underwent a three-hour training protocol and two experienced researchers measured the images individually. Measurements were taken using standardized bony landmarks and internal calipers. All researchers were blinded to the subjects and results. Main outcome measures: Data was analyzed using two-way ICC mixed-model single measurement, SEM run for all researchers compared with experienced researcher one. Results: An excellent degree of reliability was found for both intra-rater and inter-rater measurements for Novice One and a good degree of reliability was found between Experienced One and Novice Two and Three. Conclusion: Both experienced and novice researchers attained a clinically significant ICC when compared to Experienced One. An accurate and reliable measurement of the medial knee joint gap maybe useful for further studies and help with diagnosis of joint pathologies. Level of study: IIB
{"title":"Reliability of measuring the medial knee joint space using ultrasound imaging","authors":"","doi":"10.36879/jcmi.18.000108","DOIUrl":"https://doi.org/10.36879/jcmi.18.000108","url":null,"abstract":"Background: The use of ultrasound to perform quantitative musculoskeletal (MSK) measurements requires reliability among different providers\u0000with varied levels of experience and training. Recent studies have shown that physical therapists (PT) can reliably measure the glenohumeral\u0000joint space using ultrasound imaging (USI) and operator experience or well defined training protocols influences the reliability. Few studies have\u0000reported the reliability of medial knee gap measurements with USI.\u0000Objective: Evaluate inter- and intra-rater reliability of a novel approach to measuring knee gapping using experienced and trained novice clinicians.\u0000Design: Inter-rater and intra-rater reliability study\u0000Setting: Physical therapy program\u0000Participants: Novice researchers were three upper-year Doctor of Physical Therapy students. Experienced researchers were two PT certified in\u0000MSK USI with eight years of experience.\u0000Methods: A total of 166 images of two subject’s medial knee joint gaps were captured in resting by a single experience researcher. Three novice\u0000researchers, who underwent a three-hour training protocol and two experienced researchers measured the images individually. Measurements were\u0000taken using standardized bony landmarks and internal calipers. All researchers were blinded to the subjects and results.\u0000Main outcome measures: Data was analyzed using two-way ICC mixed-model single measurement, SEM run for all researchers compared with\u0000experienced researcher one.\u0000Results: An excellent degree of reliability was found for both intra-rater and inter-rater measurements for Novice One and a good degree of\u0000reliability was found between Experienced One and Novice Two and Three.\u0000Conclusion: Both experienced and novice researchers attained a clinically significant ICC when compared to Experienced One. An accurate and\u0000reliable measurement of the medial knee joint gap maybe useful for further studies and help with diagnosis of joint pathologies.\u0000Level of study: IIB","PeriodicalId":91401,"journal":{"name":"SM journal of clinical and medical imaging","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87101319","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}
Y. Mazaheri, Andreas M. Hotker, A. Shukla-Dave, H. Hricak, O. Akin
Purpose: To evaluate the performance of maximum likelihood (ML) estimation of diffusion kurtosis (DK) imaging parameters in the prostate and compare the estimated parameters to those measured using least squares (LS) estimation. Materials and methods: The institutional review board issued a waiver of informed consent for this Health Insurance Portability and Accountability Act (HIPAA)-compliant, retrospective study of forty-two patients (median [Md] age=61 years; range: 43-74 years) who underwent magnetic resonance imaging (MRI) between September and October 2016. Diffusion-weighted MRI (DW-MRI) at nine b-values (0-2000 s/mm2 ) were acquired using a 3-T whole-body MRI unit (Discovery MR750; GE Medical Systems, Waukesha, WI) equipped with an eight-channel phased array coil for signal reception. Diffusion coefficient (D) and kurtosis (K) were estimated from the normal appearing prostate peripheral zone and prostate cancer regions of interest (ROIs). The parameters were estimated by fitting the measured MR signal intensities as a function of b-value, using LS and ML algorithms. An estimate of the noise was obtained on the b=0 images in an artifact-free ROI in the rectum. Simulations were also carried out to assess the properties of the two estimators in a range of signal-to-noise ratios. Results: For benign ROIs, the mean D ± standard deviation, (1.88±0.52)×10-3 mm2 /sec, and mean K (0.79±0.20), measured using LS estimation, differed significantly from the mean D (1.96±0.48)×10-3 mm2 /sec and mean K (0.68±0.21), measured using ML estimation (P<0.001 for both). For malignant ROIs, the mean D (1.48±0.38)×10-3 mm2 /sec and mean K (0.94±0.20), measured using LS estimation, differed significantly from the mean D (1.54±0.36)×10-3 mm2 /sec and mean K (0.81±0.19), measured using ML estimation (P<0.001 for both). Simulations demonstrate that ML minimizes the bias estimate of DK parameters within the signal-to-noise ratio range of 5-15. Conclusion: By incorporating the noise level, the ML estimation increases the accuracy of DK parameter estimation. In vivo results with phased array coils showed significant differences in DK parameter estimates with ML as compared with the standard LS estimation.
{"title":"Accurate estimation of diffusion kurtosis (DK) imaging parameters of the prostate","authors":"Y. Mazaheri, Andreas M. Hotker, A. Shukla-Dave, H. Hricak, O. Akin","doi":"10.36879/jcmi.18.000106","DOIUrl":"https://doi.org/10.36879/jcmi.18.000106","url":null,"abstract":"Purpose: To evaluate the performance of maximum likelihood (ML) estimation of diffusion kurtosis (DK) imaging parameters in the prostate and\u0000compare the estimated parameters to those measured using least squares (LS) estimation.\u0000Materials and methods: The institutional review board issued a waiver of informed consent for this Health Insurance Portability and\u0000Accountability Act (HIPAA)-compliant, retrospective study of forty-two patients (median [Md] age=61 years; range: 43-74 years) who underwent\u0000magnetic resonance imaging (MRI) between September and October 2016. Diffusion-weighted MRI (DW-MRI) at nine b-values (0-2000 s/mm2\u0000)\u0000were acquired using a 3-T whole-body MRI unit (Discovery MR750; GE Medical Systems, Waukesha, WI) equipped with an eight-channel phased\u0000array coil for signal reception. Diffusion coefficient (D) and kurtosis (K) were estimated from the normal appearing prostate peripheral zone and\u0000prostate cancer regions of interest (ROIs). The parameters were estimated by fitting the measured MR signal intensities as a function of b-value,\u0000using LS and ML algorithms. An estimate of the noise was obtained on the b=0 images in an artifact-free ROI in the rectum. Simulations were also\u0000carried out to assess the properties of the two estimators in a range of signal-to-noise ratios.\u0000Results: For benign ROIs, the mean D ± standard deviation, (1.88±0.52)×10-3 mm2\u0000/sec, and mean K (0.79±0.20), measured using LS estimation,\u0000differed significantly from the mean D (1.96±0.48)×10-3 mm2\u0000/sec and mean K (0.68±0.21), measured using ML estimation (P<0.001 for both). For\u0000malignant ROIs, the mean D (1.48±0.38)×10-3 mm2\u0000/sec and mean K (0.94±0.20), measured using LS estimation, differed significantly from the\u0000mean D (1.54±0.36)×10-3 mm2\u0000/sec and mean K (0.81±0.19), measured using ML estimation (P<0.001 for both). Simulations demonstrate that ML\u0000minimizes the bias estimate of DK parameters within the signal-to-noise ratio range of 5-15.\u0000Conclusion: By incorporating the noise level, the ML estimation increases the accuracy of DK parameter estimation. In vivo results with phased\u0000array coils showed significant differences in DK parameter estimates with ML as compared with the standard LS estimation.","PeriodicalId":91401,"journal":{"name":"SM journal of clinical and medical imaging","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91237632","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}
Most face traumas affect young adults in the male population. Orbital fractures can have important consequences and are called blow-out, when there is a collapse of the floor or medial wall of the orbit, causing loss of ocular content. They are classified into two types: pure and impure. The diagnosis is made through a detailed physical examination associated with computed tomography. The forms of treatment, surgical or conservative, as well as the most opportune moment to approach surgically the blow-out orbital fractures, immediate or late, are controversial subjects in the literature. The objective of this work is to report an unusual case of pure blow-out orbital floor fracture with functional repercussions to the patient, treated surgically with success.
{"title":"Fisher’s story: orbital floor fracture","authors":"","doi":"10.36879/jcmi.18.000105","DOIUrl":"https://doi.org/10.36879/jcmi.18.000105","url":null,"abstract":"Most face traumas affect young adults in the male population. Orbital fractures can have important consequences and are called blow-out, when\u0000there is a collapse of the floor or medial wall of the orbit, causing loss of ocular content. They are classified into two types: pure and impure. The\u0000diagnosis is made through a detailed physical examination associated with computed tomography.\u0000The forms of treatment, surgical or conservative, as well as the most opportune moment to approach surgically the blow-out orbital fractures,\u0000immediate or late, are controversial subjects in the literature.\u0000The objective of this work is to report an unusual case of pure blow-out orbital floor fracture with functional repercussions to the patient, treated\u0000surgically with success.","PeriodicalId":91401,"journal":{"name":"SM journal of clinical and medical imaging","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82324100","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}
Colonoscopy is both a diagnostic and therapeutic procedure that allows examination and treatment of the rectum, colon, and the distal portion of the ileum. The risk of serious complications following colonoscopy is usually low. Hernial complications are rare after colonoscopy, and are probably promoted by an increased abdominal pressure and patient’s physical constitution. Inguinal hernia usually includes intestine and not parts of the urinary tract. In literature there no studies reporting cases of bladder herniation after a colonoscopy procedure. We presented a case of an 84-years-old man admitted to our emergency department reporting scrotum edema after a colonoscopy procedure; the abdominal computerized tomography scan showed a bladder herniation through the inguinal canal into the scrotum. The hernia was not manually reducible and required surgical correction.
{"title":"An atypical post colonoscopy complication: bladder herniation","authors":"","doi":"10.36879/jcmi.18.000104","DOIUrl":"https://doi.org/10.36879/jcmi.18.000104","url":null,"abstract":"Colonoscopy is both a diagnostic and therapeutic procedure that allows examination and treatment of the rectum, colon, and the distal portion\u0000of the ileum. The risk of serious complications following colonoscopy is usually low. Hernial complications are rare after colonoscopy, and are\u0000probably promoted by an increased abdominal pressure and patient’s physical constitution. Inguinal hernia usually includes intestine and not\u0000parts of the urinary tract. In literature there no studies reporting cases of bladder herniation after a colonoscopy procedure. We presented a case of\u0000an 84-years-old man admitted to our emergency department reporting scrotum edema after a colonoscopy procedure; the abdominal computerized\u0000tomography scan showed a bladder herniation through the inguinal canal into the scrotum. The hernia was not manually reducible and required\u0000surgical correction.","PeriodicalId":91401,"journal":{"name":"SM journal of clinical and medical imaging","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73493864","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}
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