Journal of Clinical Imaging Science最新文献

Portal vein (PV) anomalies are rare during embryonic development, with very few cases of duplicated PVs reported. This case reveals a new PV trunk anomaly, where computed tomography venography imaging shows three portal veins. The superior mesenteric vein and inferior mesenteric vein join to form a trunk that divides into two branches: One entering the liver (PV1) and the other ascending to join the splenic vein. The splenic vein then divides into two branches in the neck of the pancreas (PV2 and PV3), both entering the liver. The three PVs vary in thickness and all enter the liver through the first hepatic portal. Understanding the normal structure and anatomy of the PV is important for successful surgical planning. This case involves three main trunks of the PV, which is an extremely rare type of PV duplication anomaly. Reporting this case aims to enhance the awareness and understanding of PV duplication anomalies among clinicians and radiologists.

Granulomatous prostatitis (GP) is a rare form of chronic prostatitis with reported incidence of 0.65-1.5%. Radiological features of GP overlap with those of prostate adenocarcinoma. The following magnetic resonance imaging characteristics can suggest the diagnosis in an appropriate clinical setting: Diffuse or focal nodular low T2 signal, high signal on diffusion-weighted imaging with corresponding low apparent diffusion coefficient signal, and post-contrast imaging with lesion enhancement or rim-enhancing in the setting of caseous necrosis or abscess formation. Even with suspicion on imaging, the overlapping imaging features with prostate adenocarcinoma necessitate biopsy for confirmatory diagnosis. Here, we report a case of a 70-year-old man with GP in the setting of prior intravesicle bacillus Calmette-Guérin administration.

Idiopathic granulomatous mastitis is a rare, chronic inflammatory disease of the breast of uncertain etiology that can mimic breast cancer. In rare instances, it may emerge secondary to trauma to the breast. We present a case of a 66-year-old woman who initially underwent a benign stereotactic core-needle biopsy of her left breast complicated by a small hematoma which initially remained unchanged mammographically and sonographically for 1 year; then, it enlarged unexpectedly at the 21-month interval follow-up prompting an ultrasound-guided biopsy revealing granulomatous mastitis.

We present a case involving a 71-year-old male with tubulocystic renal cell carcinoma (TRCC), which is a rare entity of renal neoplasm. The patient was admitted for a cystic nodule on the middle pole of the right kidney by urological ultrasound during physical examination. The nodule presented with hyperechoic on conventional ultrasonic and the enhancing intensity of thicken cystic wall at the peak phase in contrast-enhanced ultrasound was similar to that of the renal parenchyma. Findings from computed tomography angiography exhibited heterogeneously contrast enhancing tumor, and magnetic resonance imaging demonstrated hypointense on T1-weighted images (WI) and hyperintense on T2WI. Histologically, the spongy surface was composed of the typical tubular and multiloculated cystic components lined by a single layer of epithelial cells. The final pathological diagnosis was TRCC. The uneventful laparoscopic right radical nephrectomy was conducted. The patient was followed up for 12 months after discharge and no signs of local or distant metastasis were found. In conclusion, TRCC should be accurately diagnosed on the basis of comprehensive radiological and histological findings to ensure a timely surgery and better prognosis.

We report a case of a 73-year-old woman presenting with intracranial and extracranial meningioma with perineural spread crossing the foramen rotundum and pterygopalatine fossa, primarily along the maxillary nerve. She visited our hospital with the chief complaint of the left cheek swelling. Subsequent magnetic resonance imaging revealed a well-demarcated mass containing intracranial (cavernous sinus, Meckel's cave, and middle cranial fossa) and extracranial components (pterygopalatine fossa, orbit, nasal cavity, ethmoid and sphenoid sinuses, infratemporal fossa, and buccal space) through the foramen rotundum. A biopsy specimen was obtained from the cheek mass, and the histopathological diagnosis was meningothelial meningioma.

Point-of-care ultrasound (POCUS) has emerged as a cost-effective diagnostic tool that significantly augments physical examinations. Positioned as an extension of traditional examination methods, particularly appealing to the upcoming generation of clinicians, it holds promise in potentially replacing the stethoscope in various medical assessments and procedures. The University of Rochester is deploying 2500 POCUS machines, enhancing compliance for image storage and documentation. Halfway through our 4-year deployment plan, we will discuss our governance structure, educational initiatives, and credentialing strategies. While POCUS adoption has seen organic growth over the past decade, our aim is to implement a comprehensive strategy ensuring adherence to established protocols for image storage and documentation. At present, we have successfully deployed 789 probes, with integration across 64 departments or divisions into our IT platform. Notably, this implementation has resulted in a remarkable 116% increase in hospital charges, underscoring the tangible impact of POCUS integration. However, achieving compliance and education among established providers has proven to be challenging.

Facet joint septic arthritis is a rare; yet, severe spinal infection often misdiagnosed due to its non-specific clinical presentation and radiological mimickers. This case series illustrates various clinical presentations, imaging features, and outcomes of patients with facet joint septic arthritis. We demonstrate different disease stages to aid clinicians and radiologists in recognizing this condition. Key diagnostic pitfalls are also discussed to enhance diagnostic accuracy in clinical practice.

Radiofrequency (RF) interference artifact is a common type of magnetic resonance imaging (MRI) artifacts caused by the presence of unwanted RF field inside the scanner room. The artifact has the appearance of parallel bright lines or bands that resemble zippers, which can mimic pathology, obstruct the viewing of underlining tissues, and lower image signal-to-noise ratio, affecting the diagnostic evaluation of the image and sometimes even rendering it non-diagnostic. Due to the presence of multiple possible sources of RF interference in MRI and potential nonrelated MRI artifacts that resemble RF interference artifact, it may be difficult to effectively and timely resolve the artifact problem. The objective of this paper is to provide a review of RF interference in MRI and to offer guidance in the prompt and correct identification of the associated image artifacts as well as efficient approaches to resolve and prevent RF interference problems. This article should serve as a useful educational reference to magnetic resonance (MR) technologists and radiologists in dealing with MR image artifacts that may be caused by RF interference.

This study aims to provide a comprehensive understanding of primary hepatic angiosarcoma, a rare and aggressive malignancy, focusing on its diagnostic challenges and unique imaging characteristics. The objective is to delineate the distinctive features of angiosarcoma through computed tomography and magnetic resonance imaging modalities, contributing to improved diagnostic precision and adding valuable insights to the scientific literature. We present the case of a 25-year-old male with primary hepatic angiosarcoma, emphasizing the challenges in distinguishing it from other vascular tumors.

Objectives: This study assesses the perceptions and attitudes of Chinese radiologists concerning the application of artificial intelligence (AI) in the diagnosis of lung nodules.

Material and methods: An anonymous questionnaire, consisting of 26 questions addressing the usability of AI systems and comprehensive evaluation of AI technology, was distributed to all radiologists affiliated with Beijing Anzhen Hospital and Beijing Tsinghua Changgung Hospital. The data collection was conducted between July 19, and 21, 2023.

Results: Of the 90 respondents, the majority favored the AI system's convenience and usability, reflected in "good" system usability scale (SUS) scores (Mean ± standard deviation [SD]: 74.3 ± 11.9). General usability was similarly well-received (Mean ± SD: 76.0 ± 11.5), while learnability was rated as "acceptable" (Mean ± SD: 67.5 ± 26.4). Most radiologists noted increased work efficiency (Mean Likert scale score: 4.6 ± 0.6) and diagnostic accuracy (Mean Likert scale score: 4.2 ± 0.8) with the AI system. Views on AI's future impact on radiology careers varied (Mean ± SD: 3.2 ± 1.4), with a consensus that AI is unlikely to replace radiologists entirely in the foreseeable future (Mean ± SD: 2.5 ± 1.1).

Conclusion: Radiologists at two leading Beijing hospitals generally perceive the AI-assisted lung nodule diagnostic system positively, citing its user-friendliness and effectiveness. However, the system's learnability requires enhancement. While AI is seen as beneficial for work efficiency and diagnostic accuracy, its long-term career implications remain a topic of debate.