Anatomical Classification of Left Atrial Appendages in Specimens Applicable to CT Imaging Techniques for Implantation of Amplatzer Cardiac Plug

2014 ◽  
Vol 25 (9) ◽  
pp. 976-984 ◽  
Author(s):  
JOSÉ R. LÓPEZ-MÍNGUEZ ◽  
REYES GONZÁLEZ-FERNÁNDEZ ◽  
CONCEPCIÓN FERNÁNDEZ-VEGAS ◽  
VICTORIA MILLÁN-NUÑEZ ◽  
MARÍA E. FUENTES-CAÑAMERO ◽  
...  
Keyword(s):  
Left Atrial ◽  
Imaging Techniques ◽  
Ct Imaging ◽  
Anatomical Classification

[68Ga] Ga-DOTA-FAPI-04 And [18F] FDG PET / CT For Diagnosis of Metastatic Lesions In Patients With Recurrent Papillary Thyroid Carcinoma

2021 ◽  
Author(s):  
Umut Elboğa ◽  
Zeynel Abidin Sayiner ◽  
Ertan Şahin ◽  
Saadettin Öztürk ◽  
Yusuf Burak Çayırlı ◽  
...  
Keyword(s):  
Papillary Thyroid Carcinoma ◽  
Thyroid Carcinoma ◽  
Fdg Pet ◽  
Imaging Techniques ◽  
Statistical Significance ◽  
Ct Imaging ◽  
Papillary Thyroid ◽  
Metastatic Focus ◽  
Pet Ct ◽  
Fdg Pet Ct

Abstract Context: PET CT imaging methods based on fibroblast activation protein inhibitors (FAPIs) have recently demonstrated promising clinical results. Objective: We aimed to evaluate the use of 68Ga-FAPI PET / CT and 18FDG PET / CT imaging techniques to detect the metastatic foci in recurrent papillary thyroid carcinoma.Design and Patients: This is a prospective study. Patients who were diagnosed with papillary thyroid carcinoma, achieved biochemical recovery after the first operation and having recurrence for papillary thyroid carcinoma on the follow up were included in the study. [68Ga] Ga-DOTA-FAPI-04 and [18F] FDG PET / CT were performed for comparative purpose and detection of recurrence localization.Results: [18F] FDG PET / CT detected the metastatic foci in 21 of 29 patients (72.4%), [68Ga] Ga-DOTA-FAPI-04 was able to detect the metastatic foci in 25 of 29 patients (86.2%). When the two imaging techniques were used together, the metastatic foci in 27 of the 29 patients could be detected (93.1%.). Also between the [18F] FDG PET / CT SUVmax values and [68Ga] Ga-DOTA-FAPI-04 SUVmax values, a statistical significance was found in favor of 68Ga-FAPI PET (p = 0,002).Conclusion: In conclusion, 68Ga-FAPI PET imaging technique can be used as an alternative method to detect the metastatic focus or foci in patients with recurrent papillary thyroid carcinoma. It can also increase the chance of metastatic focus or foci detection when used in conjunction with the 18 FDG PET.

scholarly journals Changing the Stage, Grade and Histological Subtypes of Renal Cell Carcinomas during 10 Years Period

2017 ◽  
Vol 118 (4) ◽  
pp. 119-127
Author(s):  
Selahattin Çalışkan ◽  
Orhan Koca ◽  
Mehmet Akyüz ◽  
Metin İshak Öztürk ◽  
Muhammet Ihsan Karaman
Keyword(s):  
Renal Cell ◽  
Imaging Techniques ◽  
Transitional Cell ◽  
Renal Cell Carcinomas ◽  
Small Renal Masses ◽  
Renal Masses ◽  
Renal Tumours ◽  
Group 2 ◽  
Group 1

Renal cell carcinomas (RCCs) account 80–85% of all primary renal neoplasms and originate from the renal cortex. The patients who underwent radical or partial nephrectomy for renal tumour in our unit between January 2005 and 2015 were evaluated retrospectively. The patients were divided into two groups; group 1 includes patients who were treated between January 2005 and December 2009, group 2 those from January 2010 to 2015. There were 103 patients in group 1. The patients were between 21 and 89 years with mean age of 61.46 year. Renal cell carcinomas account 83.4% of the patients, benign renal tumours were 8.7% and transitional cell carcinomas were 7.7% of the patients in group 1. A total of 32.5% RCCs were classified as pT1a, 24.4% as pT1b, 15.1% as pT2a, 11.6% as pT2b, 15.1% as pT3a and 1.1% as pT4. There were 202 patients in group 2 and the patients were between 27 and 81 years with mean age of 58.5 year. Renal cell carcinomas comprised the main bulk of the tumours with 182 nephrectomy specimens. According to the pathological classification of RCCs, 51 specimens were found as pT1a, 54 were pT1b, 13 were pT2a, 14 were pT2b, 48 were pT3a and 2 were pT4. Although, the incidence of small renal masses has been increasing with widespread use of imaging techniques and recent advancements, the proportion of high grade and advanced stage renal tumours increased during the study period.

scholarly journals Electrophysiological characteristics and anatomical differentiation of epileptic and non-epileptic myoclonus

2021 ◽  
Vol 57 (1) ◽  
Author(s):  
Mohammad Abu-Hegazy ◽  
Azza Elmoungi ◽  
Eman Eltantawi ◽  
Ahmed Esmael
Keyword(s):  
Evoked Potential ◽  
Electrophysiological Study ◽  
Juvenile Myoclonic Epilepsy ◽  
Myoclonic Epilepsy ◽  
Somatosensory Evoked Potential ◽  
Control Group ◽  
Anatomical Classification ◽  
Significant Difference ◽  
And Control

Abstract Background Electrophysiological techniques have been used for discriminating myoclonus from other hyperkinetic movement disorders and for classifying the myoclonus subtype. This study was carried out on patients with different subtypes of myoclonus to determine the electrophysiological characteristics and the anatomical classification of myoclonus of different etiologies. This study included 20 patients with different subtypes of myoclonus compared with 30 control participants. Electrophysiological study was carried out for all patients by somatosensory evoked potential (SSEP) and electroencephalography (EEG) while the control group underwent SSEP. SSEP was evaluated in patients and control groups by stimulation of right and left median nerves. Results This study included 50 cases with myoclonus of different causes with mean age of 39.3 ± 15.7 and consisted of 23 males and 27 females. Twenty-nine (58%) of the patients were epileptics, while 21 (42%) were non-epileptics. Cases were classified anatomically into ten cases with cortical myoclonus (20%), 12 cases with subcortical myoclonus (24%), and 28 cases with cortical–subcortical myoclonus (56%). There was a significant difference regarding the presence of EEG findings in epileptic myoclonic and non-epileptic myoclonic groups (P = 0.005). Also, there were significant differences regarding P24 amplitude, N33 amplitude, P24–N33 peak-to-peak complex amplitude regarding all types of myoclonus. Primary myoclonic epilepsy (PME) demonstrated significant giant response, juvenile myoclonic epilepsy (JME) demonstrated no enhancement compared to controls, while secondary myoclonus demonstrated lower giant response compared to PME. Conclusion Somatosensory evoked potential and electroencephalography are important for the diagnosis and anatomical sub-classification of myoclonus and so may help in decision-making regarding to the subsequent management.

Clinical and anatomical classification of postinjection suppuration of the gluteal area

1986 ◽  
Vol 67 (3) ◽  
pp. 186-188
Author(s):  
I. A. Ibatullin ◽  
G. G. Ruppel
Keyword(s):  
Traditional Method ◽  
Clinical Analysis ◽  
Gluteal Region ◽  
Layer By Layer ◽  
Anatomical Classification

We studied the layer-by-layer anatomy of the gluteal region on 102 preparations (51 corpses) and performed a clinical analysis in 312 patients with postinjection infections of the gluteal regions treated by the traditional method.

AI-Assisted Stanford Classification of Aortic Dissection in CT Imaging Using Volumetric 3D CNN with External Guided Attention

2021 ◽  
Author(s):  
Cheng-Fu Liou ◽  
Li-Ting Huang ◽  
Paul Kuo ◽  
Chien-Kuo Wang ◽  
Jiun-In Guo
Keyword(s):  
Aortic Dissection ◽  
Ct Imaging ◽  
3D Cnn

Tumors of the Liver

2018 ◽  
Author(s):  
Alex C Kim ◽  
Hari Nathan
Keyword(s):  
Imaging Techniques ◽  
Future Liver Remnant ◽  
Hepatic Tumors ◽  
Liver Remnant ◽  
Future Liver Remnant Volume ◽  
Malignant Lesions ◽  
Eighth Edition ◽  
Tumors Of The Liver

Tumors in the liver arise from either the underlying hepatic parenchyma, resulting in benign or malignant lesions, or as metastatic deposit from extrahepatic malignancies. Treatment of these tumors is complex and requires a careful clinical evaluation. Recent improvement in diagnostic imaging techniques and reporting facilitates for appropriate characterization of hepatic tumors. In addition, utilization of genetics allows for careful classification of malignant potential in certain hepatic tumors. This chapter discusses several different types of hepatic tumors and examines the underlying etiologies, clinical presentation, diagnostic studies, staging, treatment, and prognosis. The staging of the malignant lesions is updated to reflect the American Joint Committee on Cancer’s eighth edition system. This review contains 7 figures, 4 tables and 82 references. Key Words: Barcelona Clinic Liver Cancer system, CAPOX, future liver remnant volume, FOLFOX, LI-RADS, stereotactic body radiation therapy, transarterial chemoembolization, transarterial radioembolization, β-catenin

Cardiac CT Imaging Techniques

CT Imaging ◽  
2013 ◽  
pp. 55-70
Author(s):  
Supratik Moulik ◽  
Harold Litt
Keyword(s):  
Cardiac Ct ◽  
Imaging Techniques ◽  
Ct Imaging

Beyond biomarkers: How enhanced CT imaging can improve the diagnostic-driven management of invasive mould disease

2019 ◽  
Vol 57 (Supplement_3) ◽  
pp. S274-S286
Author(s):  
Marta Stanzani ◽  
Claudia Sassi ◽  
Giuseppe Battista ◽  
Russell E Lewis
Keyword(s):  
Hematological Malignancies ◽  
Imaging Techniques ◽  
Empirical Therapy ◽  
Antifungal Prophylaxis ◽  
Ct Imaging ◽  
Metabolic Imaging ◽  
X Rays ◽  
Vessel Occlusion ◽  
Invasive Approach ◽  
Enhanced Ct

Abstract CT imaging remains an essential diagnostic test for identification, staging and management of invasive mould infection (IMI) in patients with hematological malignancies. Yet the limited specificity of standard CT imaging can drive excessive antifungal use in patients, especially when more definitive diagnosis cannot be established through microbiology or invasive diagnostic procedures. CT pulmonary angiography (CTPA) is a complimentary, non-invasive approach to standard CT that allows for direct visualization of pulmonary arteries inside infiltrates for signs of angioinvasion, vessel destruction and vessel occlusion. Experience from several centers that are using CTPA as part of a standard diagnostic protocol for IMI suggests that a positive vessel occlusion sign (VOS) is the most sensitive and a specific sign of IMI in both neutropenic and non-neutropenic patients. CTPA is particularly useful in patients who develop suspected breakthrough IMI during antifungal prophylaxis because, unlike serum and/or BAL galactomannan and polymerase chain reaction (PCR) testing, the sensitivity is not reduced by antifungal therapy. A negative VOS may also largely rule-out the presence of IMI, supporting earlier discontinuation of empirical therapy. Future imaging protocols for IMI in patients with hematological malignancies will likely replace standard chest X-rays in favor of early low radiation dose CT exams for screening, with characterization of the lesions by CTPA and routine follow-up using functional/metabolic imaging such as 18F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (FDG-PET/CT) to assess treatment response. Hence, enhanced CT imaging techniques can improve the diagnostic-driven management of IMI management in high-risk patients with hematological malignancies.

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