EFFICACY OF 3-DIMENSIONAL COMPUTED TOMOGRAPHY IN THE DIFFERENTIAL DIAGNOSIS OF CYSTIC RENAL MASS

Abstract Intestinal pneumatosis refers to the presence of gas in the gastrointestinal wall. It is often difficult to clinically differentiate this condition from gastrointestinal perforation, sometimes resulting in emergency surgery. Imaging studies are important to establish the differential diagnosis. However, there have been few studies showing the efficacy of computed tomography (CT) colonography in diagnosing pneumatosis. We report a case of intestinal pneumatosis in which CT colonography was of significant diagnostic value. A 43-year-old man was referred to our hospital for a detailed investigation of multiple submucosal tumor-like lesions associated with multiple pneumatosis from the cecum to the ascending colon. These lesions were revealed by colonoscopy performed in another hospital on May 21, 2008. Abdominal 3-dimensional CT showed multiple pneumatic lesions from the cecum to the ascending colon, and the patient was diagnosed as having intestinal pneumatosis. The patient is being followed conservatively because he is asymptomatic.

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Faculty Opinions recommendation of 3-dimensional aortic annular assessment by multidetector computed tomography predicts moderate or severe paravalvular regurgitation after transcatheter aortic valve replacement: a multicenter retrospective analysis.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.14267348.15779552 ◽

2012 ◽

Author(s):

Lefeng Qu ◽

Jiaxuan Feng

Keyword(s):

Computed Tomography ◽

Aortic Valve ◽

Aortic Valve Replacement ◽

Multidetector Computed Tomography ◽

Retrospective Analysis ◽

Valve Replacement ◽

Transcatheter Aortic Valve Replacement ◽

3 Dimensional ◽

Transcatheter Aortic Valve

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The utility of helical computed tomography tooth pix and a 3-dimensional life-size model for treatment of squamous cell carcinoma of the mandible: A case report

Journal of Oral and Maxillofacial Surgery ◽

10.1053/joms.2002.31863 ◽

2002 ◽

Vol 60 (5) ◽

pp. 592-596 ◽

Cited By ~ 1

Author(s):

Yasunori Ariyoshi ◽

Masashi Shimahara

Keyword(s):

Computed Tomography ◽

Squamous Cell Carcinoma ◽

Case Report ◽

Cell Carcinoma ◽

Squamous Cell ◽

Helical Computed Tomography ◽

3 Dimensional ◽

Size Model

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Chronic mesenteric ischaemia presenting as possible large bowl malignancy: an easily overlooked differential diagnosis

BMJ Case Reports ◽

10.1136/bcr-2020-240202 ◽

2021 ◽

Vol 14 (3) ◽

pp. e240202

Author(s):

Benjamin McDonald

Keyword(s):

Computed Tomography ◽

Emergency Department ◽

Weight Loss ◽

Differential Diagnosis ◽

Damage Control ◽

Damage Control Surgery ◽

Mesenteric Ischaemia ◽

Abdominal Symptoms ◽

Chronic Mesenteric Ischaemia ◽

Descending Colon

An 80-year-old woman presented to a regional emergency department with postprandial pain, weight loss and diarrhoea for 2 months and a Computed Tomography (CT) report suggestive of descending colon malignancy. Subsequent investigations revealed the patient to have chronic mesenteric ischaemia (CMI) with associated bowel changes. She developed an acute-on-chronic ischaemia that required emergency transfer, damage control surgery and revascularisation. While the patient survived, this case highlights the importance of considering CMI in elderly patients with vague abdominal symptoms and early intervention to avoid potentially catastrophic outcomes.

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Visualization Ability of Phase-Contrast Synchrotron-Based X-Ray Imaging Using an X-Ray Interferometer in Soft Tissue Tumors

Technology in Cancer Research & Treatment ◽

10.1177/15330338211010121 ◽

2021 ◽

Vol 20 ◽

pp. 153303382110101

Author(s):

Thet-Thet Lwin ◽

Akio Yoneyama ◽

Hiroko Maruyama ◽

Tohoru Takeda

Keyword(s):

Computed Tomography ◽

Soft Tissue ◽

Spatial Resolution ◽

Phase Contrast ◽

Soft Tissue Tumors ◽

X Ray ◽

3 Dimensional ◽

Computed Tomography Images ◽

X Ray Imaging ◽

X Ray Computed

Phase-contrast synchrotron-based X-ray imaging using an X-ray interferometer provides high sensitivity and high spatial resolution, and it has the ability to depict the fine morphological structures of biological soft tissues, including tumors. In this study, we quantitatively compared phase-contrast synchrotron-based X-ray computed tomography images and images of histopathological hematoxylin-eosin-stained sections of spontaneously occurring rat testicular tumors that contained different types of cells. The absolute densities measured on the phase-contrast synchrotron-based X-ray computed tomography images correlated well with the densities of the nuclear chromatin in the histological images, thereby demonstrating the ability of phase-contrast synchrotron-based X-ray imaging using an X-ray interferometer to reliably identify the characteristics of cancer cells within solid soft tissue tumors. In addition, 3-dimensional synchrotron-based phase-contrast X-ray computed tomography enables screening for different structures within tumors, such as solid, cystic, and fibrous tissues, and blood clots, from any direction and with a spatial resolution down to 26 μm. Thus, phase-contrast synchrotron-based X-ray imaging using an X-ray interferometer shows potential for being useful in preclinical cancer research by providing the ability to depict the characteristics of tumor cells and by offering 3-dimensional information capabilities.

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Utility of 3-dimensional transoesophageal echocardiography for mitral annular sizing in transcatheter mitral valve replacement procedures: a cardiac computed tomography comparative study

European Heart Journal - Cardiovascular Imaging ◽

10.1093/ehjci/jeaa356.212 ◽

2021 ◽

Vol 22 (Supplement_1) ◽

Author(s):

A Coisne ◽

F Pontana ◽

S Aghezzaf ◽

S Mouton ◽

H Ridon ◽

...

Keyword(s):

Computed Tomography ◽

Mitral Valve ◽

Valve Replacement ◽

Mitral Valve Replacement ◽

Cardiac Computed Tomography ◽

Transoesophageal Echocardiography ◽

3 Dimensional ◽

Ct Measurements ◽

Good Ability ◽

Transcatheter Mitral Valve Replacement

Abstract Funding Acknowledgements Type of funding sources: None. Background. 3-dimensional transoesophageal echocardiography (3D-TEE) is frequently used as an initial screening tool in the evaluation of patients who are candidates to Transcatheter Mitral Valve Replacement (TMVR). However, little is known about the imaging correlation with the gold-standard computed tomography (CT) imaging. We aimed at testing the quantitative differences between these two modalities and finding the best 3D-TEE parameters for TMVR screening. Methods. We included 57 patients referred to our Heart Valve Clinic for TMVR with prostheses specifically designed for the mitral valve. Mitral annulus (MA) analyses were performed using commercially available software in 3D-TEE and CT. Results. 3D-TEE was feasible in 52 patients (91%). Although 3D-TEE measurements were slightly lower than in CT, both measurements of projected MA area and perimeter showed excellent correlation with small differences between the two modalities (r = 0.88 and r = 0.92 respectively, p < 0.0001). Correlations were significant but lower for MA diameters (r = 0.68 to 0.72, p < 0.0001) and mitro-aortic angle (r = 0.53, p = 0.0001). ROC curve analyses showed that 3D-TEE had a good ability to predict TMVR screening success defined by constructors based on CT measurements with a range of 12.9 to 15cm² for MA area (AUC = 0.88-0.91, p < 0.0001), 128 to 139mm for MA perimeter (AUC = 0.85-0.91, p < 0.0001), 35 to 39mm for anteroposterior diameter (AUC = 0.79-0.84 p < 0.0001) and 37 to 42mm for posteromedial-anterolateral diameter (AUC = 0.81-0.89, p < 0.0001) (Figure 1). Conclusion. 3D-TEE measurements of MA dimensions display strong correlation with CT measurements in patients undergoing TMVR screening process. 3D-TEE should be proposed as a reasonable alternative to CT in this vulnerable population. Abstract Figure.

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Objective Indirect Assessment of Transverse Ligament Competence Using Quantitative Analysis of 3-Dimensional Segmented Flexion-Extension Computed Tomography Scan

World Neurosurgery ◽

10.1016/j.wneu.2019.12.123 ◽

2020 ◽

Vol 136 ◽

pp. e223-e233

Author(s):

James Y.H. Yu ◽

Scott Collins ◽

David D. Liu ◽

Owen P. Leary ◽

Derek Merck ◽

...

Keyword(s):

Computed Tomography ◽

Quantitative Analysis ◽

Transverse Ligament ◽

Computed Tomography Scan ◽

3 Dimensional ◽

Indirect Assessment ◽

Flexion Extension ◽

Tomography Scan

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Aspiration Biopsy in Renal Angiomyolipoma

Acta Radiologica ◽

10.1177/028418518903000410 ◽

1989 ◽

Vol 30 (4) ◽

pp. 381-382 ◽

Cited By ~ 9

Author(s):

M. Taavitsainen ◽

L. Krogerus ◽

S. Rannikko

Keyword(s):

Computed Tomography ◽

Renal Mass ◽

Aspiration Biopsy ◽

Renal Angiomyolipoma ◽

Ultrasound Guided ◽

Open Biopsy ◽

Safe Method ◽

Imaging Results ◽

Mass Lesions

Ultrasound guided aspiration biopsy of renal mass lesions was performed in 56 patients in whom renal cell carcinoma could not be excluded due to equivocal imaging results. Cytology showed non-malignant mesenchymal cells consistent with angiomyolipoma in 12 patients. In 5 of these patients the diagnosis was ensured by open biopsy. No nephrectomy was performed. In 6 of the 7 patients not operated upon the tumours remained unchanged with no evidence of malignancy during a 3–36 months' follow-up period. Aspiration biopsy is an easy and safe method for diagnosing renal angiomyolipoma in cases where computed tomography is not diagnostic for this disease.

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