Journal of Clinical Imaging Science最新文献

{"title":"Supralabyrinthine air cell is not present in superior semicircular canal dehiscence.","authors":"Alok A Bhatt,&nbsp;Larry B Lundy,&nbsp;Patricia A Rhyner","doi":"10.25259/JCIS_73_2022","DOIUrl":"https://doi.org/10.25259/JCIS_73_2022","url":null,"abstract":"<p><strong>Objectives: </strong>Superior semicircular canal dehiscence (SSCD) is defined as a defect in the bone overly the superior semicircular canal (SSC). The purpose of this study is to evaluate the pre-operative imaging examinations of patients who have undergone SSCD repair. We hypothesize that these patients will not have a supralabyrinthine air cell on the side of surgery.</p><p><strong>Material and methods: </strong>Our group retrospectively reviewed 50 consecutive pre-operative computed tomography (CT) temporal bone examinations who had confirmed SSCD on intraoperative examination and underwent repair for the presence of a supralabyrinthine air cell.</p><p><strong>Results: </strong>100% of patients who had confirmed SSCD on intraoperative examination had no supralabyrinthine air cell on pre-operative CT of the temporal bone.</p><p><strong>Conclusion: </strong>This study shows that a supralabyrinthine air cell is not present in SSCD. When a supralabyrinthine air cell is present, the roof of the SSC is intact. CT and magnetic resonance imaging (MRI) are often performed together to evaluate for SSCD and exclude other etiologies. We propose that if a supralabyrinthine air cell is seen on MRI, no CT is necessary, thus avoiding unnecessary radiation exposure and additional imaging costs to the patient.</p>","PeriodicalId":15512,"journal":{"name":"Journal of Clinical Imaging Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/da/83/JCIS-12-50.PMC9479531.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40371165","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":"Catheter-directed computed tomography angiography: A pictorial essay.","authors":"Abheek Ghosh,&nbsp;Ellen Moxley,&nbsp;Suneet Waghmarae,&nbsp;James Stoner,&nbsp;Sheena Anand,&nbsp;Nabeel M Akhter","doi":"10.25259/JCIS_76_2022","DOIUrl":"https://doi.org/10.25259/JCIS_76_2022","url":null,"abstract":"<p><p>Catheter-directed computed tomography angiography (CDCTA) is an imaging technique where CT images are acquired after selective catheterization of a vessel. Images obtained in this fashion provide several advantages over conventional imaging techniques such as fluoroscopic angiography, digital subtraction angiography, cone-beam CT, and conventional CT angiography. At this point, there is still limited literature on the subject, with prior studies examining a small number of potential uses. The goal of this pictorial essay is to illustrate our single tertiary care center experience using CDCTA.</p>","PeriodicalId":15512,"journal":{"name":"Journal of Clinical Imaging Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/27/fb/JCIS-12-49.PMC9479526.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40371168","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":"Acute pelvic pain: A pictorial review with magnetic resonance imaging.","authors":"Dheeraj Reddy Gopireddy,&nbsp;Mayur Virarkar,&nbsp;Sindhu Kumar,&nbsp;Sai Swarupa Reddy Vulasala,&nbsp;Chidi Nwachukwu,&nbsp;Sanjay Lamsal","doi":"10.25259/JCIS_70_2022","DOIUrl":"https://doi.org/10.25259/JCIS_70_2022","url":null,"abstract":"<p><p>Acute uterine emergencies constitute both obstetric and gynecologic conditions. The superior image resolution, superior soft-tissue characterization, and lack of ionizing radiation make magnetic resonance imaging (MRI) preferable over ultrasonography (USG) and computed tomography (CT) in investigating uterine emergencies. Although USG is the first-line imaging modality and is easily accessible, it has limitations. USG is an operator dependent and limited by patient factors such as obesity and muscle atrophy. CT is limited by its risk of teratogenicity in pregnant females, poor tissue differentiation, and radiation effect. The non-specific findings on CT may lead to misinterpretation of the pathology. MRI overcomes all these limitations and is emerging as the most crucial imaging modality in the emergency room (ER). The evolving 3D MR sequences further reduce the acquisition times, expanding its ER role. Although MRI is not the first-line imaging modality, it is a problem-solving tool when the ultrasound and CT are inconclusive. This pictorial review discusses the various MRI techniques used in uterine imaging and the appearances of distinct etiologies of uterine emergencies across different MRI sequences.</p>","PeriodicalId":15512,"journal":{"name":"Journal of Clinical Imaging Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/17/4f/JCIS-12-48.PMC9479569.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40373050","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":"Ten-year developmental-evolution of a solitary osteoma of the mandibular ramus: Report of a case and short review.","authors":"Ioannis Tilaveridis,&nbsp;Panagiotis Karakostas,&nbsp;Vasilios Tilaveridis,&nbsp;Stavros Tilaveridis","doi":"10.25259/JCIS_78_2022","DOIUrl":"https://doi.org/10.25259/JCIS_78_2022","url":null,"abstract":"<p><p>Osteomas of the maxilla and the mandible are rare, benign, and slow-growing tumors arising from the bone cells. They are more frequently located on the mandible than the maxilla, with mandibular body, angle, and condyle being more frequently affected. The development of a peripheral osteoma at the mandibular ramus is a rare occurrence, and few cases have been published in English literature. Even though the developmental process of this pathologic entity is characterized as slow growing, little data are known about the developmental rate of the peripheral osteomas of the mandible. In our paper, we present a case of peripheral osteoma of the external surface of the right mandibular ramus that was diagnosed 10 years earlier; its dimensions were measured precisely at that time with CT. The patient declined a surgical operation, and 10 years after the initial diagnosis, she visited our department with an increase in the size of the lesion and asked for a re-evaluation. A new CBCT was performed, and accurate measurement of the new dimensions of the lesion was conducted; this was compared with the previous dimensions. The comparison of the current CBCT with the CT performed 10 years earlier permitted to calculate the growth rate of osteoma that was approximately 2.0 mm/year.</p>","PeriodicalId":15512,"journal":{"name":"Journal of Clinical Imaging Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/0a/cf/JCIS-12-47.PMC9479558.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40373218","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":"Anatomical bone structure differences in patients with hemophilic arthropathy of the knee.","authors":"Mehmet Ekinci,&nbsp;Turgut Akgül,&nbsp;Ufuk Arzu,&nbsp;Serkan Bayram,&nbsp;Taha Furkan Yağcı,&nbsp;Önder Kılıçoğlu","doi":"10.25259/JCIS_59_2022","DOIUrl":"https://doi.org/10.25259/JCIS_59_2022","url":null,"abstract":"<p><strong>Objectives: </strong>The anatomical differences of the bony structure of the knee joint in patients with hemophilia were evaluated, and the results were compared with the knees of patients with primary gonarthrosis and no arthrosis.</p><p><strong>Material and methods: </strong>This study reviewed 41 knees in 21 patients (with an Arnold-Hilgartner classification of Stages 4 and 5 hemophilic arthropathy) who underwent total knee arthroplasty in single center. Two control groups including 21 asymptomatic patients (42 knees) and 21 primary knee osteoarthritis patients (42 knees) were formed to compare the measurements with hemophiliacs. Femoral mediolateral width, femoral anteroposterior width, femur and tibia diaphysis width, adductor tubercle-joint line distance, tibial plateau width, and medial and lateral tibia plateau width were measured separately.</p><p><strong>Results: </strong>Femoral mediolateral width was significantly narrow comparing with healthy individuals and primary knee osteoarthritis group. Tibial plateau was similar to asymptomatic group but significantly narrow compared with primary knee osteoarthritis group. With the correlation, the tibial plateau measurements and medial and lateral plateau were significantly narrow at hemophilic arthropathy group (<i>P</i> < 0.05). The slope was less in hemophilic patients as compared with asymptomatic individuals (<i>P</i>: 0.001). Hemophilic patients had larger femoral aspect ratios than asymptomatic group but there were no observable differences with the primary osteoarthritis group. For the tibial aspect ratios, hemophilic had a smaller ratio than the primary osteoarthritis group but there were no significant differences with the asymptomatic group.</p><p><strong>Conclusion: </strong>Hemophilic knee has a mismatch between femoral and tibial side while comparing with the other groups.</p><p><strong>Level of evidence: </strong>Level IV, cross-sectional study.</p>","PeriodicalId":15512,"journal":{"name":"Journal of Clinical Imaging Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/71/a0/JCIS-12-46.PMC9479580.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40373047","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":"Quantitative classification of invasive and noninvasive breast cancer using dynamic magnetic resonance imaging of the mammary gland.","authors":"Yoshiaki Miyazaki,&nbsp;Juichiro Shimizu,&nbsp;Yuichiro Kubo,&nbsp;Nobuyuki Tabata,&nbsp;Tomohiko Aso","doi":"10.25259/JCIS_56_2022","DOIUrl":"https://doi.org/10.25259/JCIS_56_2022","url":null,"abstract":"<p><strong>Objectives: </strong>Breast cancers are classified as invasive or noninvasive based on histopathological findings. Although time-intensity curve (TIC) analysis using magnetic resonance imaging (MRI) can differentiate benign from malignant disease, its diagnostic ability to quantitatively distinguish between invasive and noninvasive breast cancers has not been determined. In this study, we evaluated the ability of TIC analysis of dynamic MRI data (MRI-TIC) to distinguish between invasive and noninvasive breast cancers.</p><p><strong>Material and methods: </strong>We collected and analyzed data for 429 cases of epithelial invasive and noninvasive breast carcinomas. TIC features were extracted in washout areas suggestive of malignancy.</p><p><strong>Results: </strong>The graph determining the positive diagnosis rate for invasive and noninvasive cases revealed that the cut-off θ_i/ni value was 21.6° (invasive: θ_w > 21.6°, noninvasive: θ_w ≤ 21.6°). Tissues were classified as invasive or noninvasive using this cut-off value, and each result was compared with the histopathological diagnosis. Using this method, the accuracy of tissue classification by MRI-TIC was 88.6% (380/429), which was higher than that using ultrasound (73.4%, 315/429).</p><p><strong>Conclusion: </strong>MRI-TIC is effective for the classification of invasive vs. noninvasive breast cancer.</p>","PeriodicalId":15512,"journal":{"name":"Journal of Clinical Imaging Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/f3/7b/JCIS-12-45.PMC9479655.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40373049","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":"Chordoma at the skull base, spine, and sacrum: A pictorial essay.","authors":"Sin Hang Lee,&nbsp;Kai Yan Kwok,&nbsp;Sin Man Wong,&nbsp;Chik Xing Jason Chan,&nbsp;Yu Ting Wong,&nbsp;Man Lung Tsang","doi":"10.25259/JCIS_62_2022","DOIUrl":"https://doi.org/10.25259/JCIS_62_2022","url":null,"abstract":"<p><p>Chordomas are rare tumors believed to be arising from the notochord remnant in the axial skeleton. Diagnosis is often difficult since they show overlapping imaging features with other more common disease including metastases. Since individualized papers are only discussing the imaging features at different locations, the aim of this pictorial review is to have a comprehensive review on the common imaging findings of chordomas along the entire neuroaxis with a series of pathological proven cases in a local tertiary hospital in Hong Kong.</p>","PeriodicalId":15512,"journal":{"name":"Journal of Clinical Imaging Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/46/34/JCIS-12-44.PMC9479632.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40373053","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":"Optimizing low contrast volume thoracic CT angiography: From the basics to the advanced.","authors":"Katherine Kaproth-Joslin, Susan Hobbs, Prabhakar Rajiah, Apeksha Chaturvedi, Abhishek Chaturvedi","doi":"10.25259/JCIS_51_2022","DOIUrl":"10.25259/JCIS_51_2022","url":null,"abstract":"<p><p>Contrast-enhanced CT angiography (CTA) is a widely used, noninvasive imaging technique for evaluating cardiovascular structures. Contrast-induced nephrotoxicity is a concern in renal disease; however, the true nephrotoxic potential of iodinated contrast media (CM) is unknown. If a renal impaired patient requires CTA, it is important to protect the kidneys from further harm by reducing total iodinated CM volume while still obtaining diagnostic quality imaging. These same reduced volume CM techniques can also be applied to nonrenal impaired patients in times of CM shortage. This educational review discusses several modifications to CTA that can be adapted to both conventional 64-slice and the newer generation CT scanners which enable subsecond acquisition with a reduced CM volume technique. Such modifications include hardware and software adjustments and changes to both the volume and flow rate of administered CM, with the goal to reduce the dose of CM without compromising diagnostic yield.</p>","PeriodicalId":15512,"journal":{"name":"Journal of Clinical Imaging Science","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/43/a7/JCIS-12-41.PMC9479554.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40373052","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":"A case report of mesenteric involvement in neurofibromatosis type 1.","authors":"Nguyen Van Sang, Tran Phan Ninh, Dang Trung Thanh, Nguyen Cuong Thinh","doi":"10.25259/JCIS_49_2022","DOIUrl":"10.25259/JCIS_49_2022","url":null,"abstract":"<p><p>Mutations in the Neurofibromatosis Type 1 (NF-1) gene, which is located on chromosome 17q11.2, are the cause of NF-1, an autosomal dominant hereditary condition in which tumors of the nerve system develop. Neurological, skeletal, and cutaneous abnormalities are symptoms of the condition. Of all gastrointestinal tract lesions, mesentery lesions are the least common. There are many gastrointestinal problems that can accompany mesenteric neurofibromas, or they may not. We describe a case of a 5-year-old kid with mesenteric neurofibromatosis, which results in bowel obstruction and abdominal discomfort. On a CT scan, the mesenteric vasculature was completely encircled by homogenous soft tissue lesions without any vessel wall invasion. Diffuse mesentery lesions were discovered during surgery, although they could not be fully removed.</p>","PeriodicalId":15512,"journal":{"name":"Journal of Clinical Imaging Science","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/4e/26/JCIS-12-43.PMC9479501.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40371169","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":"Earlier appearance of Risser sign on ultrasound versus radiograph in adolescent idiopathic scoliosis.","authors":"Michio Hongo,&nbsp;Yuji Kasukawa,&nbsp;Akiko Misawa,&nbsp;Daisuke Kudo,&nbsp;Ryota Kimura,&nbsp;Naohisa Miyakoshi","doi":"10.25259/JCIS_61_2022","DOIUrl":"https://doi.org/10.25259/JCIS_61_2022","url":null,"abstract":"<p><strong>Objective: </strong>The usefulness of ultrasound in the detailed assessment of the Risser sign is still unclear. The purpose of this study was to analyze the usefulness of ultrasound for determining the Risser sign compared with that determined by conventional radiography by each Risser grade.</p><p><strong>Materials and methods: </strong>Eighty-eight iliac crests from 44 adolescent patients who visited the scoliosis clinic with Risser grades 0-4 were evaluated. The ultrasound probe was placed vertically on the iliac crest and the point where iliac apophysis ossification ended was marked. The length of ossification relative to the length of the iliac crest was calculated.</p><p><strong>Results: </strong>Agreement between radiographic and ultrasound images were found in 58/86 iliac crests (67%). Kappa value was 0.565. Agreement between the two methods with regard to Risser grade was 53% for grade 0, 43% for grade 1, 47% for grade 2, 88% for grade 3, and 90% for grade 4. With additional analysis by integrating grades into two groups, the agreement rate was 47.7% and the Kappa value was 0.288 in the grade 0-2 group, and 88% and 0.703 in grades 3-4 group, respectively. In cases of disagreements, 93% of the iliac crests were judged as having higher Risser grades by ultrasound than by radiograph.</p><p><strong>Conclusion: </strong>Risser sign evaluation by ultrasound demonstrated a higher agreement rate in grades 3 and 4, whereas less agreement was found in grades 0-2. In the majority of cases with disagreement, ultrasound showed a higher grade than radiography, suggesting that ossification can be detected earlier with ultrasound than with radiography.</p>","PeriodicalId":15512,"journal":{"name":"Journal of Clinical Imaging Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/8d/fe/JCIS-12-40.PMC9479553.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40373048","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}