Upright MDCT with 320 Detector-Row Gantry: A Technical Innovation Providing Insights into Human Anatomy Under Gravity and Potential Clinical Implications.

CT performed in the supine position has been highly effective in diagnosing organic diseases such as cancer, arteriosclerosis, and infections, significantly contributing to increased life expectancy. In an aging society, extending healthy life expectancy becomes more critical, requiring early diagnosis of functional disorders. We have led the industry-academia collaboration in developing an upright MDCT system.

Imaging of the umbilicus.

The umbilicus is a scar of the umbilical cord containing various embryonic remnants that can lead to postnatal diseases. It is the collection point for blood and lymphatic flow and other structures. Hence, various diseases and conditions can occur.

A case of plasmacytoid urothelial carcinoma with characteristic radiological findings.

Plasmacytoid urothelial carcinoma (PUC) is a rare and an aggressive subtype of invasive urothelial carcinoma, often diagnosed at advanced stages with poor prognosis. We report a case of PUC with characteristic radiological findings. A male patient in his 70s presented with nocturnal urinary incontinence; cystoscopy findings suggested cancer.

A case of immunoglobulin G4-related disease with a urethral lesion diagnosed by radiological imaging before biopsy.

We present a 50-year-old female with IgG4-related disease (IgG4-RD) of the urethra. She had been diagnosed with IgG4-RD involving the pancreas, lacrimal glands, salivary glands, kidneys, and right breast 5 years earlier, which had remitted after steroid treatment. In recent months, she had experienced urinary incontinence.

Extratesticular masses focusing on MRI findings.

Scrotal masses, whether cystic or solid lesions, are routinely evaluated using ultrasonography. Magnetic resonance imaging (MRI) may be used for further investigation in cases with atypical findings, difficult diagnoses, large masses, and/or unclear relationships with the surrounding tissues. Scrotal solid masses are divided into intra- and extra-testicular masses.

Utility of radiomics features of diffusion-weighted magnetic resonance imaging for differentiation of fat-poor angiomyolipoma from clear cell renal cell carcinoma: model development and external validation.

Purpose: To investigate the utility of radiomics features of diffusion-weighted magnetic resonance imaging (DW-MRI) to differentiate fat-poor angiomyolipoma (fpAML) from clear cell renal cell carcinoma (ccRCC).

Materials And Methods: This multi-institutional study included two cohorts with pathologically confirmed renal tumors: 65 patients with ccRCC and 18 with fpAML in the model development cohort, and 17 with ccRCC and 13 with fpAML in the external validation cohort. All patients underwent magnetic resonance imaging (MRI) including DW-MRI.

Three-dimensional evaluation of the coccyx movement between supine and standing positions using conventional and upright computed tomography imaging.

Currently, no three-dimensional reference data exist for the normal coccyx in the standing position on computed tomography (CT); however, this information could have utility for evaluating patients with coccydynia and pelvic floor dysfunction. Thus, we aimed to compare coccygeal parameters in the standing versus supine positions using upright and supine CT and evaluate the effects of sex, age, and body mass index (BMI) on coccygeal movement. Thirty-two healthy volunteers underwent both upright (standing position) and conventional (supine position) CT examinations.

Incidentally detected microcystic serous cystadenoma of the pancreas with splenic invasion: a case report and literature review.

Serous cystic neoplasms are relatively uncommon and rarely possess malignant potential. We report a rare case of pancreatic serous cystadenoma with splenic invasion in a female in her 60s. Dynamic contrast-enhanced CT revealed a 3 cm mass in the tail of the pancreas.