scholarly journals Hasüregi daganatáttétek stereotaxiás sugárkezelése egy ülésben. Beszámoló az első hazai, koponyán kívüli sugársebészeti beavatkozásról

2015 ◽  
Vol 156 (39) ◽  
pp. 1593-1599
Author(s):  
László Mangel ◽  
Zoltán László ◽  
Zsuzsanna Varga ◽  
Zsolt Sebestyén ◽  
Szabolcs Szappanos ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Left Kidney ◽  
Total Duration ◽  
Surgical Removal ◽  
Complete Regression ◽  
Cancer Therapies ◽  
Computed Tomographic ◽  
Body Radiosurgery ◽  
Computed Tomography Image

Due to the development and increasing effectiveness of novel cancer therapies, the role of local treatments in metastatic diseases have been increasing in the last decades. The aim of the authors was to present the first successful extracranial stereotactic radiosurgical intervention in Hungary. A 58-year-old male patient with gastric adenocarcinoma underwent surgery and adjuvant chemotherapy. Later, surgical removal of suprarenal gland metastases and first line chemotherapy were carried out. Four years after the first surgery a follow up computed tomographic scan revealed bifocal peritoneal metastases caudally from the edge of the liver and the left kidney with diameters of 2 cm in size. Definitive stereotactic body radiosurgery of 12 Gy single dose was performed using cone beam computed tomography image guidance and intensity modulated arc therapy with two pairs of arcs. The total duration of the procedure was only 25 min and early or late side effects were not observed. Follow up computed tomography scans performed 3 and 7 months after the intervention showed complete regression of the metastases. The authors conclude that stereotactic body radiosurgery can be a safe and effective alternative of metastasis surgery in case of slow growing oligo-metastases. Orv. Hetil., 2015, 156(39), 1593–1599.

scholarly journals Computed Tomography and Bronchoscopy in Endobronchial Tuberculosis

2003 ◽  
Vol 10 (8) ◽  
pp. 445-448 ◽  
Author(s):  
Halil Yanardag ◽  
Cüneyt Tetikkurt ◽  
Seza Tetikkurt ◽  
Sabriye Demirci ◽  
Tuncer Karayel
Keyword(s):  
Computed Tomography ◽  
Retrospective Study ◽  
Therapeutic Response ◽  
Histopathological Examination ◽  
Computed Tomographic ◽  
Before And After ◽  
Endobronchial Tuberculosis ◽  
Age Range

BACKGROUND: The therapeutic response to endobronchial tuberculosis is usually evaluated by bronchoscopy. Currently, there are no published studies investigating the use of computed tomography for the evaluation of therapeutic response in endobronchial tuberculosis.OBJECTIVE: A retrospective study was performed to evaluate the bronchoscopic and computed tomographic features of endobronchial tuberculosis before and after treatment. The aim of this study was to investigate the usefulness of computed tomography for the assessment of treatment.METHODS: The clinical, pathological and bronchoscopic features of endobronchial tuberculosis were evaluated in 55 patients. The age range of the patients was 21 to 52 years. Computed tomography and bronchoscopy were performed before and after treatment.RESULTS: Diagnosis of tuberculosis was confirmed by culture and histopathological examination. Bronchoscopic examination revealed 89 endobronchial lesions of various types in 55 patients. The exudative type was the most common. Follow-up bronchoscopy revealed that exudative-, ulcerative- and granular-type lesions healed completely. Computed tomography performed after treatment correlated well with the follow-up bronchoscopic findings.CONCLUSION: The results suggest that follow-up computed tomography is useful for the evaluation of therapeutic response and complications associated with endobronchial tuberculosis, and may replace bronchoscopy.

scholarly journals Temporal lung changes in high-resolution chest computed tomography for coronavirus disease 2019

2020 ◽  
Vol 48 (9) ◽  
pp. 030006052095099
Author(s):  
Chengyang Chen ◽  
Xing Wang ◽  
Jia Dong ◽  
Dianer Nie ◽  
Qianlan Chen ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Type I ◽  
Type Ii ◽  
High Resolution Computed Tomography ◽  
Computed Tomographic ◽  
Reticular Pattern ◽  
Ct Radiation ◽  
Diffuse Distribution

Objective To evaluate temporal lung changes in coronavirus disease 2019 (COVID-19) in high-resolution computed tomography (HRCT) and to determine the appropriate computed tomographic (CT) follow-up time. Methods Eighty-six patients with two or more HRCT scans who were diagnosed with COVID-19 were included. The CT score and major CT findings were evaluated. Results Eighty-two (95.3%) patients had lesions on the initial HRCT scans. Most scans showed bilateral, multifocal lung lesions, with multiple lobes involved and diffuse distribution. For fifty-seven patients with type I (progress compared with the initial CT score), the CT score reached a peak at 12 days and the nadir at 36 days. For twenty-nine patients with type II (no progress compared with the initial CT score), the lowest CT score was reached at 23 days. On the final HRCT scans (>21 days), patients with a reticular pattern were older than those without a reticular pattern. Conclusion The appropriate follow-up time of CT scans is during the second week (approximately 12 days) and the fourth to fifth weeks (approximately 23–36 days) from the onset of illness. These times could help reduce the CT radiation dose and show timely changes in the course of the disease by CT.

scholarly journals A Giant Retroperitoneal Liposarcoma Encasing the Entire Left Kidney and Adherent to Adjacent Structures: A Case Report

2016 ◽  
Vol 9 (2) ◽  
pp. 368-372 ◽  
Author(s):  
Sung Don  Oh ◽  
Sung Jin Oh ◽  
Byoung Jo Suh ◽  
Jin Yong Shin ◽  
Cheol Kyu Oh ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Standard Treatment ◽  
Left Kidney ◽  
Surgical Removal ◽  
Image Study ◽  
Retroperitoneal Liposarcoma ◽  
Adjacent Structures ◽  
Locally Recurrent ◽  
Giant Liposarcoma

Retroperitoneal liposarcoma is a rare tumor. The dimension and weight of liposarcoma are variable; those over 20 kg are called ‘giant liposarcoma’. Herein, we report giant retroperitoneal liposarcoma measuring 45 cm in diameter and 25 kg in weight encasing the entire left kidney and adherent to adjacent structures. A 71-year-old woman presented for a regular checkup. Image study revealed a huge mass probably indicative of retroperitoneal liposarcoma encasing the entire left kidney and adherent to adjacent structures. We performed an organ-preserving surgical removal. The pathologic report was liposarcoma. At postoperative month 16, a follow-up CT revealed a locally recurrent tumor. The patient underwent surgical removal of the newly discovered mass. After the second surgery, the patient underwent regular follow-up CT for approximately 12 months, and to date, there has been no evidence of tumor recurrence. High-grade liposarcoma shows sensitivity to radiation therapy. However, the toxic effect of radiation therapy limits this option by treatment modality. The use of chemotherapy is also controversial. As a result, complete resection is the gold standard treatment. Here, we report a giant retroperitoneal liposarcoma encasing the entire left kidney and adherent to adjacent structures, describe successful organ-preserving surgical removal and discuss prognosis.

Comparative study of 3 exophthalmometers and computed tomographic biometry

2018 ◽  
Vol 28 (2) ◽  
pp. 144-149 ◽  
Author(s):  
Juliette Delmas ◽  
Jean-Marie Loustau ◽  
Sylvain Martin ◽  
Loïc Bourmault ◽  
Jean-Paul Adenis ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Ct Scan ◽  
Axial Length ◽  
Intraclass Correlation ◽  
Great Accuracy ◽  
Graves Disease ◽  
Interobserver Reproducibility ◽  
Computed Tomographic ◽  
Cerebral Computed Tomography

Purpose: Accurate and reproducible exophthalmometry is mandatory to diagnose and follow-up orbital patients, especially in Graves disease. However, many variations are described among the different commercially available exophthalmometers. Methods: Sixty patients, who underwent a cerebral computed tomography (CT) scan, were included. External prebicanthal segments (EPBCS) for right and left eyes (RE and LE), interorbital distance, and globe axial length were recorded by a first observer (O1), more experienced than a second (O2). Intraobserver and interobserver reproducibility were evaluated, using intraclass correlation coefficient (ICC) and Bland and Altman plots. Results: Concordance between each EPBCS measurement for each eye and CT scan biometry was moderate for the Luedde ruler for the 2 observers. For the Hertel exophthalmometer, concordance was moderate for O1 in the 2 eyes and moderate in RE but good in LE for O2. For the Mourits exophthalmometer, this concordance was very good in RE and good in LE for O1, and good whatever the eye for O2. Intraobserver (ICC varying from 0.75 to 0.95 for the 2 observers) and interobserver (ICC from 0.69 to 0.94) reproducibility were high, especially for the Mourits exophthalmometer. Bland and Altman plots showed underestimations when using the Luedde ruler, overestimations when using the Hertel exophthalmometer, and overestimation of small values and underestimation of high values when using the Mourits exophthalmometer when compared to CT scan biometry. Conclusions: We demonstrated great accuracy to CT scan biometry with 1-prism Mourits exophthalmometer, low accuracy with the Luedde instrument, and intermediate accuracy with the Hertel exophthalmometer, with fair intraobserver and interobserver reproducibility.

Long-term ophthalmic anatomical and functional outcomes after surgical removal of intraorbital foreign bodies

2019 ◽  
pp. 112067211988558
Author(s):  
Aditi Mehta Grewal ◽  
Manpreet Singh ◽  
Deepti Yadav ◽  
Manpreet Kaur ◽  
Jyoti Singh ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Functional Outcomes ◽  
Foreign Bodies ◽  
Surgical Removal ◽  
Movement Restriction ◽  
Foreign Body Removal ◽  
Computed Tomographic ◽  
Functional Factors

Purpose: To analyze the anatomical and functional ophthalmic parameters after the surgical removal of various intraorbital foreign bodies. Methods: A retrospective analysis of medical records was performed featuring detailed history, ophthalmic examination, orbital computed tomographic scans, treatment details, and outcomes. The analyzed anatomical factors included extraocular movements, the position of the eyeball (proptosis, dystopia, and enophthalmos), and fullness of orbital sulci. The functional assessment was based on visual acuity, pupillary reactions, and diplopia. The outcomes were defined as complete, partial, and failure after a minimum follow-up of 1 year. Results: Of 32 patients, the organic and inorganic intraorbital foreign bodies were surgically removed from 18 (56.25%) and 14 (43.75%) orbits, respectively. At presentation, anatomically the extraocular movement restriction, proptosis/dystopia/enophthalmos, and orbital sulcus fullness were noted in 26 (81.25%), 24 (75%), and 15 (46.88%), respectively. Functionally, diminished visual acuity, diplopia, and pupil abnormalities were seen in 27 (84.38%), 14 (43.75%), and 8 (25%), respectively. After intraorbital foreign body removal at a mean follow-up of 14 months, the improvement of anatomical factors (same sequence) were observed in 8 (30.77%), 20 (83.33%), and 12 (80%), respectively. In functional factors (same sequence), the improvement was noted in none (0%), 13 (92.86%), and 5 (62.5%), respectively. Hence, the majority of patients (n = 20, 62.5%) achieved partial success, while 8 (25%) had complete success. Four (12.5%) had treatment failure despite similar management protocols. Conclusion: The anatomical outcomes are better than the functional outcomes after surgical removal of the intraorbital foreign bodies. The visual acuity does not improve considerably after the surgical removal of intraorbital foreign bodies. Overall, the wooden intraorbital foreign bodies have poorer anatomical and functional prognosis.

scholarly journals An Unusually Large Cavernous Hemangioma of Retropharyngeal Space: A Rare Case

2015 ◽  
Vol 100 (5) ◽  
pp. 958-961
Author(s):  
Linli Tian ◽  
Jiarui Zhang ◽  
Yufei Jiao ◽  
Tianyi Liu ◽  
Ming Liu
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Rare Case ◽  
Benign Tumors ◽  
Retropharyngeal Space ◽  
Complete Regression ◽  
Resonance Imaging ◽  
Associated Symptoms ◽  
Dense Mass

Hemangiomas rarely occur in the retropharyngeal space with only several cases reported in the current literature. This article reports the hemangiomas of retropharyngeal space. A 55-year-old woman was referred to our institution for dysphagia. Computed tomography and magnetic resonance imaging of the neck and spine revealed a large, well-circumscribed, dense mass that extended from the retropharyngeal space to the sides of the neck. Patient underwent direct excision of the lesion. Complete regression of symptoms was observed after surgery, with no lesions found on routine 24-month follow-up. Although hemangiomas are relatively common in the head and neck, those that originate in the retropharyngeal space are very rarely observed. These benign tumors have the potential to compress adjacent tissues or organs and thereby produce associated symptoms like dysphagia and dyspnea. We present the reported case of larger hemangiomas of the retropharyngeal space and detail their management.

scholarly journals Non-surgical removal of dens invaginatus in maxillary lateral incisor using CBCT: Two-year follow-up case report

Open Medicine ◽  
2019 ◽  
Vol 14 (1) ◽  
pp. 767-771
Author(s):  
Babita Pradhan ◽  
Yuan Gao ◽  
Libang He ◽  
Jiyao Li
Keyword(s):  
Three Dimensional ◽  
Sinus Tract ◽  
Radiographic Examination ◽  
Surgical Removal ◽  
Computed Tomographic ◽  
Gutta Percha ◽  
Dimensional Reconstruction ◽  
Maxillary Lateral Incisor ◽  
Dens Invaginatus

AbstractA 14-year female presented with an atypical looking tooth #7 with a sinus tract on tooth #8. A gutta-percha point inserted into the sinus tract confirmed the affected tooth #7. A radiographic examination of tooth showed a lateral radiolucency with respect to tooth #7. Cone-beam computed tomographic imaging was done for the three-dimensional reconstruction analysis. Dens invaginatus (Oehler’s type III) with pulp necrosis and chronic apical periodontitis was the definitive diagnosis. Use of the dental operating microscope and ultrasonics helped in the removal of the invaginated structure. At the two year follow-up, no clinical and radiographic evidence of infection was observed.

scholarly journals Integration of imaging modalities in digital dental workflows - possibilities, limitations, and potential future developments

2021 ◽  
pp. 20210268
Author(s):  
Sohaib Shujaat ◽  
Michael M. Bornstein ◽  
Jeffery B. Price ◽  
Reinhilde Jacobs
Keyword(s):  
Three Dimensional ◽  
Clinical Problem ◽  
Cone Beam ◽  
Main Ingredient ◽  
Digital Workflow ◽  
Computed Tomographic ◽  
Tomography Image ◽  
Tomographic Data ◽  
Computed Tomography Image

The digital workflow process follows different steps for all dental specialties. However, the main ingredient for the diagnosis, treatment planning and follow-up workflow recipes is the imaging chain. The steps in the imaging chain usually include all or at least some of the following modalities: cone-beam computed tomographic data acquisition, segmentation of the cone-beam computed tomography image, intraoral scanning, facial three-dimensional soft tissue capture and superimposition of all the images for the creation of a virtual augmented model. As a relevant clinical problem, the accumulation of error at each step of the chain might negatively influence the final outcome. For an efficient digital workflow, it is important to be aware of the existing challenges within the imaging chain. Furthermore, artificial intelligence-based strategies need to be integrated in the future to make the workflow more simplified, accurate and efficient.

Predicting Stroke Risk in Pediatric Moyamoya Disease with Xenon-enhanced Computed Tomography

Neurosurgery ◽  
2004 ◽  
Vol 55 (2) ◽  
pp. 327-333 ◽  
Author(s):  
David J. McAuley ◽  
Ken Poskitt ◽  
Paul Steinbok
Keyword(s):  
Computed Tomography ◽  
Moyamoya Disease ◽  
Stroke Risk ◽  
Tissue Perfusion ◽  
Computed Tomographic ◽  
Before And After ◽  
Xenon Computed Tomography ◽  
Enhanced Computed Tomography ◽  
Acetazolamide Challenge

Abstract OBJECTIVE: To determine whether estimates of regional cerebral blood flow (rCBF) using xenon computed tomography (XeCT) in children with moyamoya disease can predict stroke risk before and after treatment. METHOD: Seven patients with moyamoya disease underwent 22 serial Xe computed tomographic scans. Estimates of rCBF were obtained at three computed tomographic levels by use of a 5-minute inhalation of 28% Xe. Acetazolamide challenge was performed in eight scans. For comparison of abnormal vessel distribution and areas of infarction, 17 intra-arterial digital subtraction angiograms, 47 computed tomographic scans, and 15 magnetic resonance imaging scans were available. Follow-up exceeded 36 months in all patients. Mean follow-up for the interventional group was 65.2 months (n =5; range, 37–109 mo) and 38 months for the nonoperative patients (n =2; 36 and 40 mo). RESULTS: Of six Xe computed tomographic scans obtained at diagnosis, four revealed regions of oligemia, augmented vertebrobasilar flow, and regions of carotid steal after acetazolamide. In the delay between diagnosis and treatment, three patients had strokes in ischemic areas identified by XeCT. Of the 10 posttreatment scans obtained from 4 patients, 2 revealed improved tissue perfusion with angiography confirming successful encephaloduroangiomyosynangiosis. In 2 others, XeCT performed 6 months posttreatment revealed improved perfusion without angiographic change, and angiography at 1 year revealed failed encephaloduroangiomyosynangiosis and new native collaterals. None of the patients with improved rCBF had new strokes. Eleven of 14 Xe computed tomographic scans were obtained within 30 days of angiography. Comparison of these studies demonstrates that regions of oligemia were confined to areas associated with vessel stenosis and little neovascularity or collateral pathways. CONCLUSION: XeCT, particularly with acetazolamide challenge, objectively quantifies rCBF. Our preliminary data suggest that it may permit assessment of stroke risk in children with moyamoya disease and may predict surgical outcome earlier than angiography.

Managing the unexpected: Carcinosarcoma of the kidney parenchyma A case with the longest follow-up

2020 ◽  
pp. 039156032093043
Author(s):  
Drilona Ndrevataj ◽  
Guglielmo Mantica ◽  
Nataniele Piol ◽  
Alessia Cavo ◽  
Bruno Spina ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Left Kidney ◽  
Area Under The Curve ◽  
Distant Metastases ◽  
Malignant Degeneration ◽  
Lower Pole ◽  
Patient Relationship ◽  
Computed Tomography Scan ◽  
Tomography Scan

Introduction: We present the management of the second reported case of carcinosarcoma of the kidney parenchyma with malignant degeneration of both epithelial and mesenchymal components. Case report: A 36-year-old woman came to our attention for an incidental sonographic finding of a lesion in the lower pole of the left kidney. A contrasted computed tomography scan confirmed the presence of a 50 × 52 mm2 contrasted lesion in the left lower kidney pole. The patient underwent a challenging laparoscopic left partial nephrectomy and para-aortic lymphadenectomy. The histological examination led to the diagnosis of a carcinosarcoma of the kidney parenchyma with malignant degeneration of both epithelial and mesenchymal components. The patient underwent adjuvant chemotherapy with paclitaxel at 175 mg/m2 plus carboplatin area under the curve 6 intravenously for six cycles. At a follow-up of 42 months, the patient is alive and does not show any local recurrences or distant metastases. Conclusion: A multi-disciplinary therapeutic approach, combined with an adequate doctor–patient relationship and a close and detailed follow-up, is of fundamental importance in obtaining good outcomes in such rare and challenging cases.

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