Multidetector CT imaging features of solid pseudopapillary tumours of the pancreas in male patients: distinctive imaging features with female patients

Abstract Background Solid-pseudo papillary neoplasms of pancreas (SPNP) are rare in men and are often misdiagnosed. This study aimed to analyze the clinical and multi-slice computer tomography (MSCT) features of patients with SPNP, and examine the differences between males and females. Methods In this retrospective cohort study, the clinical and imaging data of 29 patients with histolopathologically confirmed SPNP (seven males and 22 females) that underwent radical resection, and underwent preoperative MSCT at the First People’s Hospital of Lianyungang between August 2010 and December 2018 were collected. All MSCT images were reviewed by two radiologists; disagreements were ruled by a third one. Results The median age of the 29 patients with SPNP was 30 (range, 12–70) years. The male patients were older than the female patients [median, 56 (28–66) vs. 29 (12–70), P = 0.012]. The median tumor size was 3.9 (range, 2.0–6.4) cm in the male SPNP patients, which was significantly lower than the 7.0 (range, 4.6–14.6) cm in the female patients (P < 0.001). The calcification rate of the SPNP was significantly higher in male than in female patients (P = 0.013). The percentage of solid tumor was higher in males than in females (P = 0.036). Capsule, bleeding, and enhancement in the arterial and venous phases were not significantly different between the male and female patients (all P > 0.05). Conclusion The imaging features of male SPNP are distinct from those of female patients. In males with pancreatic lesions, MSCT generally shows relatively small lesions with higher percentages of solid components and calcification, with typical enhancement suggesting SPNP.

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Multidetector CT imaging features of invasive renal parenchyma urothelial carcinoma

British Journal of Radiology ◽

10.1259/bjr.20151068 ◽

2016 ◽

Vol 89 (1063) ◽

pp. 20151068 ◽

Cited By ~ 4

Author(s):

Qingqiang Zhu ◽

Wenrong Zhu ◽

Jingtao Wu ◽

Wenxin Chen

Keyword(s):

Urothelial Carcinoma ◽

Multidetector Ct ◽

Ct Imaging ◽

Renal Parenchyma ◽

Imaging Features

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PEMBELAJARAN SIMULASI PENCITRAAN CT DENGAN MENGGUNAKAN PRINSIP REKONSTRUKSI CITRA DALAM SOFTWARE MATLAB

Jurnal Dinamika Pendidikan ◽

10.33541/jdp.v8i3.127 ◽

2015 ◽

Vol 8 (3) ◽

pp. 161

Author(s):

Samuel Gideon

Keyword(s):

Image Reconstruction ◽

Ct Imaging ◽

The Body ◽

Reconstruction Technique ◽

Imaging Features ◽

Back Projection ◽

Cross Sectional ◽

Low Contrast ◽

Image Reconstruction Technique ◽

Imaging Algorithms

This research was conducted as a learning alternatives for study of CT (computed tomograpghy) imaging using image reconstruction technique which are inversion matrix, back projection and filtered back projection. CT imaging can produce images of objects that do not overlap. Objects more easily distinguishable although given the relatively low contrast. The image is generated on CT imaging is the result of reconstruction of the original object. Matlab allows us to create and write imaging algorithms easily, easy to undersand and gives applied and exciting other imaging features. In this study, an example cross-sectional image recon-struction performed on the body of prostate tumors using. With these methods, medical prac-titioner (such as oncology clinician, radiographer and medical physicist) allows to simulate the reconstruction of CT images which almost resembles the actual CT visualization techniques.Keywords : computed tomography (CT), image reconstruction, Matlab

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GAMBARAN ANGKA KEJADIAN STROKE AKIBAT HIPERTENSI DI INSTALASI REHABILITASI MEDIK BLU RSUP PROF. DR. R. D. KANDOU MANADO PERIODE JANUARI – DESEMBER 2011

e-CliniC ◽

10.35790/ecl.1.2.2013.3281 ◽

2013 ◽

Vol 1 (2) ◽

Author(s):

Ariesta Zubiah Ramadhini ◽

L. S. Angliadi ◽

Engeline Angliadi

Keyword(s):

Descriptive Study ◽

Medical Rehabilitation ◽

Stroke Patients ◽

Female Patients ◽

Male Patients

Abstract: Stroke may cause a serious problem that leads to a disability or even mortality. The purpose is to determine such an incidence caused by hypertension at the Installation of Medical Rehabilitation RSUP Prof. dr. R. D. Kandou Manado based on the characteristic of age, gender and occupation. This research was taken at the Installation of Medical Rehabilitation RSUP Prof. R. D. Kandou Manado by using retrospective descriptive study method as well as examining 228 new cases of stroke patients that correlated with conclusion criteria. The result showed 8,3% patients at ≤44th years old, 33,3% patients at 45th – 54th years old, 32% patients at 55th – 64th years old, 20,25% patients at 65th – 74th years old, 6,1% patients at 75th – 84th years old. 53,1% male patients, 46,9% female patients. 33,3% retirement, 18% farmers, 18% government officers, 5,3% private employees, 2,2% drivers, 0,9% teachers and, 3,1% housewives. Keywords: incidence, hypertension, stroke Abstrak: Stroke dapat menimbulkan masalah besar karena menyebabkan kecacatan dan kematian. Tujuan, mengetahui gambaran angka kejadian stroke akibat hipertensi di Instalasi Rehabilitasi Medik RSUP Prof. Dr. R. D. Kandou Manado sesuai dengan karakteristik umur, jenis kelamin, dan jenis pekerjaan. Penelitian dilakukan di Instalasi Rehabilitasi Medik BLU RSUP Prof. dr. R. D. Kandou Manado, dilakukan secara retrospektif deskriptif dan didapatkan sampel sebanyak 228 data pasien kunjungan baru kasus stroke sesuai kriteria inklusi yang ditetapkan. Hasil penelitian, pasien stroke berumur ≤44 tahun 8,3%, berumur 45 – 54 tahun 33,3%, berumur 55 – 64 tahun 32%, berumur 65 – 74 tahun 20,25%, berumur 75 – 84 tahun 6,1%. Pasien stroke berjenis kelamin laki – laki 53,1%, perempuan 46,9%. Pasien stroke yang berstatus pekerjaan pensiunan 33,3%, petani 18%, PNS 18%, pegawai swasta 5,3%, supir 2,2%, guru 0,9%, IRT 3,1%. Kata Kunci: gambaran angka kejadian, hipertensi, stroke

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CT imaging features of the normal parathyroid gland in the dog

Tierärztliche Praxis Ausgabe K Kleintiere / Heimtiere ◽

10.1055/a-1236-4542 ◽

2020 ◽

Vol 48 (05) ◽

pp. 313-320

Author(s):

Esther Lautscham ◽

Clea von Klopmann ◽

Sebastian Schaub ◽

Christiane Stengel ◽

Antje Hartmann

Keyword(s):

Ct Scan ◽

Parathyroid Gland ◽

Spiral Ct ◽

Ct Imaging ◽

Field Of View ◽

Imaging Features ◽

Hounsfield Units ◽

Klinische Relevanz

Zusammenfassung Gegenstand und Ziel Ziel dieser prospektiven Pilotstudie war zu beurteilen, ob die physiologische Glandula parathyroidea beim Hund computertomografisch dargestellt werden kann, und eine Beschreibung ihres CT-Erscheinungsbildes zu geben. Material und Methoden In die Studie wurden 25 Hunde aufgenommen, bei denen aufgrund von Erkrankungen im Halsbereich ohne Bezug zu Schild- oder Nebenschilddrüse ein CT-Scan erfolgte. Einschlusskriterium waren unauffällige Befunde bei der allgemeinen klinischen Untersuchung und der Blutuntersuchung (Blutbild und blutchemische Analyse). CT-Bilder vor und nach Kontrastmittelapplikation (30–45 Sekunden nach der Kontrastmittelinjektion, frühe venöse Phase) wurden mit einem 16-Schichten-Spiral-CT unter Verwendung eines Field of View von 18 cm, einer Schichtdicke von 1 mm und einer Matrix von 512 × 512 angefertigt. Zwei Radiologen begutachteten die CT-Aufnahmen unabhängig voneinander. Die Sichtbarkeit der Parathyreoidea wurde erfasst und die Interobserver-Reliabilität ermittelt. Bei den darstellbaren Nebenschilddrüsen wurden folgende Parameter bestimmt: Größe, Dichte (in Hounsfield Units [HU], vor und nach Kontrastmittelgabe), Dichte der Schilddrüse, Abgrenzung (exzellent, mäßig, schlecht). Ergebnisse Nur 20 bzw. 25 Nebenschilddrüsen waren durch die beiden Untersucher erkennbar. Die Anzahl differierte zwischen Nativaufnahmen und Bildern nach Kontrastmittelgabe nicht. Die Interobserver-Reliabilität hinsichtlich der Erkennbarkeit war moderat (κ = 0,40). Für Länge, Breite und Höhe der Nebenschilddrüsen (Mittelwert ± Standardabweichung) ergaben sich 4,2 × 2,5 × 2,9 mm ± 1,3 × 0,8 × 1,0 mm. Die Dichte betrug 39,7 ± 20,6 HU vor und 103,1 ± 47,1 HU nach Kontrastmittelgabe. Damit stellten sich die Nebenschilddrüsen im Vergleich zur Schilddrüse (vor und nach Kontrastmittelgabe 166,7 ± 34,3 HU bzw. 234,0 ± 60,1 HU) hypoattenuierend dar. Schlussfolgerung Diese Studie liefert die erste Beschreibung des CT-Erscheinungsbilds der angenommen physiologischen Nebenschilddrüse beim Hund. Die Sichtbarkeit des Organs war jedoch schlecht. Klinische Relevanz Trotz der schlechten Visualisierung der Nebenschilddrüse im CT ist sie gelegentlich wahrnehmbar. Die ermittelten Dimensionen waren teilweise größer als bisher für sonografische Darstellung beschrieben, ohne dass die untersuchten Hunde erkennbare Symptome eines Hyperparathyreodismus aufwiesen. Eine computertomografisch sichtbare Nebenschilddrüse impliziert daher möglicherweise nicht unbedingt eine Erkrankung. Weitere Studien dazu sind notwendig.

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Semiautomated carotid artery plaque composition: are intraplaque CT imaging features associated with cardiovascular risk factors?

Neuroradiology ◽

10.1007/s00234-021-02662-6 ◽

2021 ◽

Author(s):

John C. Benson ◽

Giuseppe Lanzino ◽

Valentina Nardi ◽

Luis Savastano ◽

Amir Lerman ◽

...

Keyword(s):

Risk Factors ◽

Cardiovascular Risk ◽

Carotid Artery ◽

Cardiovascular Risk Factors ◽

Ct Imaging ◽

Imaging Features ◽

Plaque Composition ◽

Carotid Artery Plaque

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Differences in Outcomes Between Anterior and Posterior Shoulder Instability After Arthroscopic Bankart Repair: A Systematic Review and Meta-analysis

Orthopaedic Journal of Sports Medicine ◽

10.1177/23259671211006437 ◽

2021 ◽

Vol 9 (5) ◽

pp. 232596712110064

Author(s):

Matthew L. Vopat ◽

Reed G. Coda ◽

Nick E. Giusti ◽

Jordan Baker ◽

Armin Tarakemeh ◽

...

Keyword(s):

Systematic Review ◽

Shoulder Instability ◽

Anterior Shoulder Instability ◽

Posterior Shoulder Instability ◽

Anterior Instability ◽

Posterior Instability ◽

Female Patients ◽

Posterior Shoulder ◽

Male Patients ◽

Postoperative Instability

Background: The glenohumeral joint is one of the most frequently dislocated joints in the body, particularly in young, active adults. Purpose: To conduct a systematic review and meta-analysis to evaluate and compare outcomes between anterior versus posterior shoulder instability. Study Design: Systematic review; Level of evidence, 4. Methods: A systematic review was performed using the PubMed, Cochrane Library, and MEDLINE databases (from inception to September 2019) according to PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. Studies were included if they were published in the English language, contained outcomes after anterior or posterior shoulder instability, had at least 1 year of follow-up, and included arthroscopic soft tissue labral repair of either anterior or posterior instability. Outcomes including return-to-sport (RTS) rate, postoperative instability rate, and pre- and postoperative American Shoulder and Elbow Surgeons (ASES) scores were recorded and analyzed. Results: Overall, 39 studies were included (2077 patients; 1716 male patients and 361 female patients). Patients with anterior instability had a mean age of 23.45 ± 5.40 years (range, 11-72 years), while patients with posterior instability had a mean age of 23.08 ± 8.41 years (range, 13-61 years). The percentage of male patients with anterior instability was significantly higher than that of female patients (odds ratio [OR], 1.36; 95% CI, 1.04-1.77; P = .021). Compared with patients with posterior instability, those with anterior instability were significantly more likely to RTS (OR, 2.31; 95% CI, 1.76-3.04; P < .001), and they were significantly more likely to have postoperative instability (OR, 1.53; 95% CI, 1.07-2.23; P = .018). Patients with anterior instability also had significantly higher ASES scores than those with posterior instability (difference in means, 6.74; 95% CI, 4.71-8.77; P < .001). There were no significant differences found in postoperative complications between the anterior group (11 complications; 1.8%) and the posterior group (3 complications; 1.6%) (OR, 1.12; 95% CI, 0.29-6.30; P = .999). Conclusion: Patients with anterior shoulder instability had higher RTS rates but were more likely to have postoperative instability compared with posterior instability patients. Overall, male patients were significantly more likely to have anterior shoulder instability, while female patients were significantly more likely to have posterior shoulder instability.

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Early CT features of COVID-19 pneumonia, association with patients’ age and duration of presenting complaint

Egyptian Journal of Radiology and Nuclear Medicine ◽

10.1186/s43055-021-00539-5 ◽

2021 ◽

Vol 52 (1) ◽

Author(s):

Reem M. EL Kady ◽

Hosam A. Hassan ◽

Tareef S. Daqqaq ◽

Rania Makboul ◽

Hanan Mosleh Ibrahim

Keyword(s):

Pleural Effusion ◽

Ground Glass Opacity ◽

Ct Imaging ◽

Older Age ◽

Ground Glass ◽

Imaging Features ◽

Age Group ◽

Patient Age ◽

Atypical Features ◽

Patient Âgé

Abstract Background Coronavirus disease (COVID-19) is a respiratory syndrome with a variable degree of severity. Imaging is a vital component of disease monitoring and follow-up in coronavirus pulmonary syndromes. The study of temporal changes of CT findings of COVID-19 pneumonia can help in better understanding of disease pathogenesis and prediction of disease prognosis. In this study, we aim to determine the typical and atypical CT imaging features of COVID-19 and discuss the association of typical CT imaging features with the duration of the presenting complaint and patients’ age. Results The lesions showed unilateral distribution in 20% of cases and bilateral distribution in 80% of cases. The lesions involved the lower lung lobes in 30% of cases and showed diffuse involvement in 58.2% of cases. The lesions showed peripheral distribution in 74.5% of cases. The most common pattern was multifocal ground glass opacity found in 72.7% of cases. Atypical features like cavitation and pleural effusion can occur early in the disease course. There was significant association between increased number of the lesions, bilaterality, diffuse pattern of lung involvement and older age group (≥ 50 years old) and increased duration of presenting complaint (≥ 4 days). There was significant association between crazy-paving pattern and increased duration of presenting complaint. No significant association could be detected between any CT pattern and increased patient age. Conclusion The most common CT feature of COVID-19 was multifocal ground glass opacity. Atypical features like cavitation and pleural effusion can occur early in the course of the disease. Our cases showed more extensive lesions with bilateral and diffuse patterns of distribution in the older age group and with increased duration of presenting complaint. There was a significant association between crazy-paving pattern and increased duration of presenting complaint. No significant association could be detected between any CT pattern and increased patient age.

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Predictive CT features for the diagnosis of primary pulmonary mucoepidermoid carcinoma: comparison with squamous cell carcinomas and adenocarcinomas

Cancer Imaging ◽

10.1186/s40644-020-00375-2 ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Xiaohua Ban ◽

Xinping Shen ◽

Huijun Hu ◽

Rong Zhang ◽

Chuanmiao Xie ◽

...

Keyword(s):

Logistic Regression ◽

Roc Curve ◽

Multinomial Logistic Regression ◽

Univariate Analysis ◽

Ct Imaging ◽

Squamous Cell Carcinomas ◽

Curve Analysis ◽

Imaging Features ◽

Roc Curve Analysis ◽

Ct Features

Abstract Background To determine the predictive CT imaging features for diagnosis in patients with primary pulmonary mucoepidermoid carcinomas (PMECs). Materials and methods CT imaging features of 37 patients with primary PMECs, 76 with squamous cell carcinomas (SCCs) and 78 with adenocarcinomas were retrospectively reviewed. The difference of CT features among the PMECs, SCCs and adenocarcinomas was analyzed using univariate analysis, followed by multinomial logistic regression and receiver operating characteristic (ROC) curve analysis. Results CT imaging features including tumor size, location, margin, shape, necrosis and degree of enhancement were significant different among the PMECs, SCCs and adenocarcinomas, as determined by univariate analysis (P < 0.05). Only lesion location, shape, margin and degree of enhancement remained independent factors in multinomial logistic regression analysis. ROC curve analysis showed that the area under curve of the obtained multinomial logistic regression model was 0.805 (95%CI: 0.704–0.906). Conclusion The prediction model derived from location, margin, shape and degree of enhancement can be used for preoperative diagnosis of PMECs.

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