Thoracoscopic segmentectomy for lung tumour with displaced B.

The frequency of bronchial branching abnormalities is about 0.6%, of which about 75% are related to the right upper lobe. The frequency of left B transition bronchus is even rarer, but a few cases have been reported.

Correlation between normally aerated lung and respiratory system compliance at clinical high positive end-expiratory pressure in patients with COVID-19.

Normally aerated lung tissue on computed tomography (CT) is correlated with static respiratory system compliance (C) at zero end-expiratory pressure. In clinical practice, however, patients with acute respiratory failure are often managed using elevated PEEP levels. No study has validated the relationship between lung volume and tissue and C at the applied positive end-expiratory pressure (PEEP).

Adverse plasma branched-chain amino acid profile mirrors fatty muscle degeneration in diabetic heart failure patients.

Aims: Elevated plasma branched-chain amino acids (BCAAs) are tightly linked to incident diabetes and its complications, while lower BCAAs are associated with adverse outcomes in the elderly and heart failure (HF) patients. The interplay between body compositions and plasma BCAAs, especially under the influence of co-morbid diabetes in HF patients, is not well understood. Here, we examined the impact of diabetes on the prognostic value of plasma BCAA and its association with body compositions in HF patients.

Partial arch replacement of type A aortic dissection after thoracic endovascular aortic repair for type B dissection.

Background: Stent graft-induced new entry (SINE), defined as the stent graft-induced formation of a new entry point for blood to enter an area, is increasingly being observed after thoracic endovascular aortic repair (TEVAR) for Stanford type B aortic dissection worldwide. We herein describe a case of Stanford type A aortic dissection due to proximal SINE after TEVAR for Stanford type B dissection.

Case Presentation: This case involved a 58-year-old man with type A aortic dissection due to SINE.

A Case of a Giant Hemangioma of a Primary Cardiac Tumor.

We report a case of a 71-year-old female with a primary cardiac tumor. The patient had undergone surgery for uterine cancer 10 years ago and presented to a nearby clinic complaining of dyspnea on exertion. Chest X-ray revealed cardiac enlargement, prompting further investigations, which revealed a massive tumor protruding into the left atrium and extending toward the outer wall of the left ventricle.

Initial Outcomes of Physician-Modified Inner Branched Endovascular Repair in High-Surgical-Risk Patients.

Purpose: To report the initial outcomes of physician-modified inner branched endovascular repair (PMiBEVAR) for pararenal aneurysms (PRAs), thoracoabdominal aortic aneurysms (TAAAs), and aortic arch aneurysms in high-surgical-risk patients.

Materials And Methods: A total of 10 patients (6 men; median age, 83.0 years) treated using PMiBEVAR were enrolled in this retrospective, single-center study.

Correlation between the hysteresis of the pressure-volume curve and the recruitment-to-inflation ratio in patients with coronavirus disease 2019.

Background: Since the response to lung recruitment varies greatly among patients receiving mechanical ventilation, lung recruitability should be assessed before recruitment maneuvers. The pressure-volume curve (PV curve) and recruitment-to-inflation ratio (R/I ratio) can be used bedside for evaluating lung recruitability and individualing positive end-expiratory pressure (PEEP). Lung tissue recruitment on computed tomography has been correlated with normalized maximal distance (NMD) of the quasi-static PV curve.

Pulmonary vessels and bronchus anatomy of the left upper lobe.

Purposes: The bronchopulmonary vascular bifurcation patterns in the upper lobe of the left lung are diverse. Therefore, it is important for general thoracic surgeons to understand the detailed anatomy of the pulmonary segments when performing thoracoscopic anatomical pulmonary resection. This study aimed to analyze the bronchovascular patterns of the left upper lobe and summarize the anatomical information associated with pulmonary anatomical pulmonary resection.

Anatomy of the left subsuperior segment for segmentectomy.

Purpose: The subsuperior segmental bronchi (B*) forms the subsuperior segment (S*) between the superior (S) and basal segment (S, S, S, S) of the lung. However, the anatomical planes of S* remains undefined. The present study clarified the anatomical features of S*.

Atrial flutter after surgeries of congenitally corrected transposition of great arteries in total visceral inversion.

A 51-year-old man, who had a history of open heart surgery for corrected transposition of great arteries, presented with palpitation due to atrial tachycardia. A propagation map using three-dimensional electroanatomical mapping (CARTO3) showed atrial flutter and underwent linear ablation successfully. This case highlights the difficulty of diagnosis before mapping following a complicated cardiac operation and the usefulness of three-dimensional mapping.

CT reconstruction with thick slices not only underestimates lymph node size but also reduces data reproducibility in colorectal cancer.

Background: Reliable size measurement of lymph node (LN) metastases is important for the evaluation of cancer treatment. However, image analyses without proper settings may result in inappropriate diagnoses and staging.

Purpose: To investigate whether reconstruction slice thickness in computed tomography (CT) affects measurements of LN size and reproducibility.

Lateral Position With Gantry Tilt Further Improves Computed Tomography Image Quality Reconstructed Using Single-Energy Metal Artifact Reduction Algorithm in the Oral Cavity.

Objective: To assess the limitations of single-energy metal artifact reduction algorithm in the oral cavity and evaluate the availability of a solution by setting the patient in a lateral position (LP) with the use of a gantry tilt (GT).

Methods: We analyzed 88 patients with dental metals retrospectively in study 1, and 74 patients prospectively in study 2. Patients were classified: metal I with dental metals in 1 region, metal II in 2 regions, and metal III in 3 regions.

Pulmonary vessels and bronchial anatomy of the left lower lobe.

Purpose: To identify and clarify the comprehensive anatomic patterns in the left lower lobe (LLL).

Methods: Using computed tomography (CT) imaging data, including that obtained using three-dimensional CT, we reviewed the anatomic patterns of the pulmonary vessels and bronchi in the left lungs of 539 patients, focusing on the LLL.

Results: The two-stem type in A was observed in 131 (24.

[Assessment of Left Ventricular Systolic and Diastolic Function with Retrospective Electrocardiogram Triggered 320-row Area Detector Computed Tomography: A Comparison with Ultrasound Echocardiography].

Background: The 320-row area detector computed tomography (ADCT) for the evaluation of left ventricular (LV) systolic function has been reported, but reporting of ADCT for the evaluation of LV diastolic function (LVDF) cannot be found. The purpose of this study was to examine the usefulness of ADCT in the assessment of LV systolic and diastolic function compared to ultrasound echocardiography (Echo) as the standard of reference.

Materials And Methods: We evaluated 60 consecutive patients (mean age 62.

[Influence of heart rhythm, breathing and arm position during computed tomography scanning on the registration accuracy of electro anatomical map (EAM) images, left atrium three-dimensional computed tomography angiography images, and fluoroscopy time during ablation to treat atrial fibrillation].

Background: In CARTOMERGE(®) for treatment of atrial fibrillation (AF) by ablation, by integrating electro anatomical map (EAM) and left atrium three-dimensional computed tomography angiography (3D-CTA) images, identification of the ablation points is simplified and the procedure can be made carried out more rapidly. However, the influence that heart rhythm, breathing and arm position during CT scanning have on registration accuracy and fluoroscopy time is not clear.

Purpose: To clarify the influence on registration accuracy and fluoroscopy time of heart rhythm, breathing and arm position during CT scanning.

Total thoracoscopic lung segmentectomy of anterior basal segment of the right lower lobe (RS8) for NSCLC stage IA (case report).

A 69-year-old woman with a pulmonary nodule in anterior basal segment of the right lower lobe (RS8) was referred to our department. The diameter of the tumor was 12 mm, and it had increased over a few months. First, video-assisted thoracoscopic lung surgery (VATS) biopsy of the pulmonary nodule was carried out.

[Evaluation of three-dimensional enhanced brain surface imaging using CT (3D surface CT angiography) and magnetic resonance imaging (3D surface MR angiography)].

The optimal imaging conditions for 3D brain surface imaging by magnetic resonance imaging (MRI) and multi-slice CT were investigated. Visualization of the sulci, gyri, and veins on the brain's surface was also compared between 3D surface images acquired using multi-slice CT and conventional single-slice CT and MRI. Various imaging parameters, including slice thickness, dose, and matrix size, were evaluated using our original brain surface phantom and longitudinal direction evaluation phantom as well as images obtained from healthy volunteers.