OOIR: Observatory of International Research

Papers

(The median citation count of Ultrasonography is 2. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-05-01 to 2025-05-01.)

Article	Citations
Utility of fusion imaging for the evaluation of ultrasound quality in hepatocellular carcinoma surveillance	56
Ultrasonographic atlas of splenic lesions	31
Optic nerve sheath diameter, strain ratio, and shear wave elastography	30
Endoscopic ultrasonography is useful for predicting perforation in the endoscopic resection of gastric submucosal tumors originating from the muscularis propria: a retrospective case-control study	30
The efficiency of contrast-enhanced endoscopic ultrasound (EUS) combined with EUS elastography for pancreatic cancer diagnosis: a systematic review and meta-analysis	29
Accuracy of the ultrasound attenuation coefficient for the evaluation of hepatic steatosis: a systematic review and meta-analysis of prospective studies	26
A comparison of the diagnostic performance of the O-RADS, RMI4, IOTA LR2, and IOTA SR systems by senior and junior doctors	26
The role of Doppler ultrasonography in the detection and management of nutcracker syndrome	23
Assessment of thyroid-specific quality of life in patients with benign symptomatic thyroid nodules treated with radiofrequency or ethanol ablation: a prospective multicenter study	23
Quantitative analysis using intraoperative contrast-enhanced ultrasound in adult-type diffuse gliomas with isocitrate dehydrogenase mutations: association between hemodynamics and molecular features	22
Predicting the chemotherapeutic response of colorectal cancer liver metastasis using shear-wave elastography	22
Relationship between endometriosis and uterine cervical elasticity assessed using ultrasound strain elastography	22
Percutaneous radiofrequency ablation of solitary hepatic metastases from colorectal cancer: risk factors of local tumor progression-free survival and overall survival	19
Sonazoid-enhanced ultrasonography for noninvasive imaging diagnosis of hepatocellular carcinoma: special emphasis on the 2022 KLCA-NCC guideline	19
Transient elastography with controlled attenuation parameter versus two-dimensional shear wave elastography with attenuation imaging for the evaluation of hepatic steatosis and fibrosis in NAFLD	17
A prospective comparison of two ultrasound attenuation imaging modes using different frequencies for assessing hepatic steatosis	16
Unraveling distinctions between contrast-enhanced ultrasound and CT/MRI for liver mass diagnosis	16
Technical issues in ultrasound-guided ethanol ablation for thyroid lesions	16
Multiparametric ultrasound for upper extremity dialysis access evaluation	15
Nerve entrapment syndromes: detection by ultrasound	15
Improving breast ultrasonography education: the impact of AI-based decision support on the performance of non-specialist medical professionals	15
Malignancy risk stratification and subcategorization of K-TIRADS intermediate suspicion thyroid nodules: a retrospective multicenter study	14
2022 Taiwan clinical multicenter expert consensus and recommendations for thyroid radiofrequency ablation	14
Contrast-enhanced voiding ultrasonography to detect intrarenal reflux in children: comparison with 99mTc-DMSA renal scans	13
Pelvic ultrasonography of the postpartum uterus in patients presenting to the emergency room with vaginal bleeding and pelvic pain	13

Transperineal versus transrectal prostate fiducial insertion in radiation treatment of prostate cancer: a systematic review and meta-analysis	13
Evaluation of the ulnar nerve with shear-wave elastography: a potential sonographic method for the diagnosis of ulnar neuropathy	12
Comparison of two different lung ultrasound imaging protocols in COVID-19 pneumonia	12
Shear-wave elastography for the assessment of testicular involvement of hematologic malignancies in children and young adults: a feasibility study	11
Application of O-RADS US combined with MV-Flow to diagnose ovarian-adnexal tumors	11
Ultrasound-guided ethanol ablation versus the Sistrunk operation as a primary treatment for thyroglossal duct cysts	11
Applications of artificial intelligence in obstetrics	11
Contrast enhancement for ultrasound-guided interventions: when to use it and what to expect?	11
Analyzing the adoption of radiofrequency ablation of thyroid nodules using the diffusion of innovations theory: understanding where we are in the United States?	11
Unsupervised speckle noise reduction technique for clinical ultrasound imaging	10
A pilot clinical study of low-intensity transcranial focused ultrasound in Alzheimer’s disease	10
Role of high-frequency ultrasound in differentiating benign and malignant skin lesions: potential and limitations	10
Effectiveness of ultrasonography and shear wave sonoelastography in Sjögren syndrome with salivary gland involvement	10
Evaluation of ultrasound point shear wave elastography reliability in an elasticity phantom	10
Ultrasonographic echogenicity of normal salivary glands in adults: comparison of submandibular and parotid glands	9
How many times should we repeat measurements of the ultrasound-guided attenuation parameter for evaluating hepatic steatosis?	9
Improving the quality of breast ultrasound examination performed by inexperienced ultrasound doctors with synchronous tele-ultrasound: a prospective, parallel controlled trial	9
Accuracy of attenuation imaging in the assessment of pediatric hepatic steatosis: correlation with the controlled attenuation parameter	9
Intelligent handheld ultrasound improving the ability of non-expert general practitioners in carotid examinations for community populations: a prospective and parallel controlled trial	9
Vascular compression syndromes: a pictorial review	9
Combined accuracy of optic nerve sheath diameter, strain ratio, and shear wave elastography of the optic nerve in patients with idiopathic intracranial hypertension	9
Diagnostic performance of the modified Korean Thyroid Imaging Reporting and Data System for thyroid malignancy according to nodule size: a comparison with five society guidelines	8
Contrast-enhanced voiding urosonography for the diagnosis of vesicoureteral reflux and intrarenal reflux: a comparison of diagnostic performance with fluoroscopic voiding cystourethrography	8
Ultrasound imaging for inguinal hernia: a pictorial review	8
Ablation therapy for patients with colorectal liver metastases with and without extrahepatic metastases: evaluation of long-term outcomes and prognostic factors	8
Differentiation of cystic biliary atresia and choledochal cysts using prenatal ultrasonography	8
Long-term follow-up of the radiofrequency ablation of benign thyroid nodules: the value of additional treatment	7
Antenatal diagnosis of congenital heart disease by 3D ultrasonography using spatiotemporal image correlation with HDlive Flow and HDlive Flow silhouette rendering modes	7
Recurrence and additional treatment of cystic thyroid nodules after ethanol ablation: validation of three proposed criteria	7
Ultrasonographic differential diagnosis of medial elbow pain	7
Casting light on the overlooked trigger point of the interosseous muscles in metatarsalgia: insights and treatment strategies	7
Deep learning-based automated quantification of the hepatorenal index for evaluation of fatty liver by ultrasonography	7
High-contrast spectroscopic photoacoustic characterization of thermal tissue ablation in the visible spectrum	6
Knot-and-ear sign: a pathognomonic ultrasonographic feature of suture granuloma after thyroid surgery	6
Controlled attenuation parameter measured using transient elastography for the noninvasive assessment of macrovesicular steatosis in potential living liver donors	6
A simplified approach to ovarian lesions based on the O-RADS US risk stratification and management system	6
Cutting-edge progress of intravascular ultrasound in lower-extremity vascular interventions	6
Non-invasive evaluation of testicular torsion using ultrasound shear wave elastography: an experimental study	6
Urethral configuration and mobility during urine leaking described using real-time transperineal ultrasonography	5
Usefulness of 2D shear wave elastography for the evaluation of hepatic fibrosis and treatment response in patients with autoimmune hepatitis	5
A preliminary study of shear-wave elastography for the evaluation of varicocele in adolescents and young adults	5
Arterial stiffness in subclinical atherosclerosis quantified with ultrafast pulse wave velocity measurements: a comparison with a healthy population using propensity score matching	5
Advanced fibrosis leads to overestimation of steatosis with quantitative ultrasound in individuals without hepatic steatosis	5
Two-dimensional shear wave elastography (ElastQ) accurately rules out liver fibrosis and rules in advanced chronic liver disease across liver disease etiologies: a prospective multicenter study	5
Contrast-enhanced ultrasonography for the evaluation of malignant focal liver lesions	5
Comparison of micro-flow imaging and contrast-enhanced ultrasonography in assessing segmental congestion after right living donor liver transplantation	5
The utility of two-dimensional shear wave elastography for predicting prostate cancer: a preliminary study	5
Intra-individual comparison of two-dimensional shear wave elastography techniques using plane wave imaging and the multi-beam technique: are they interchangeable in measuring liver fibrosis?	5
Inter-observer and intra-observer reliability between manual segmentation and semi-automated segmentation for carotid vessel wall volume measurements on three-dimensional ultrasonography	5
Prostate gland volume estimation: anteroposterior diameters measured on axial versus sagittal ultrasonography and magnetic resonance images	4

Combined fine-needle aspiration with core needle biopsy for assessing thyroid nodules: a more valuable diagnostic method?	4
Elastography for the differential diagnosis of malignant versus benign testicular lesions: a meta-analysis	4
A problem-based approach in musculoskeletal ultrasonography: heel pain in adults	4
Risk of thyroid cancer in a lung cancer screening population of the National Lung Screening Trial according to the presence of incidental thyroid nodules detected on low-dose chest CT	4
Early response evaluation of doxorubicin-nanoparticle-microbubble therapy in orthotopic hepatocellular carcinoma rat model using contrast-enhanced ultrasound and intravoxel incoherent motion-diffusion	4
Clinical applications of shear wave dispersion imaging for breast lesions: a pictorial essay	4
Comparison of the diagnostic performance of the modified Korean Thyroid Imaging Reporting and Data System for thyroid malignancy with three international guidelines	4
Ultrasonographic features of the skin and subcutis: correlations with the severity of breast cancer–related lymphedema	4
Ultrasonographic evaluation of patients with abnormal liver function tests in the emergency department	4
Artificial intelligence models for the diagnosis and management of liver diseases	4
Noninvasive assessment of hepatic steatosis using a pathologic reference standard: comparison of CT, MRI, and US-based techniques	4
Hemodynamics in Doppler ultrasonography	4
Posterior subependymal germinal matrix hemorrhage as a mild form of hemorrhage in extremely preterm infants: neurodevelopmental outcomes at corrected ages of 18-24 months	4
Percutaneous radiofrequency ablation of hepatocellular carcinoma in a recent cohort at a tertiary cancer center: incidence and factors associated with major complications and unexpected hospitalizatio	4
Renal growth slope in children with congenital and acquired solitary functioning kidneys	4
Diagnostic performance of ultrasonography-guided core-needle biopsy according to MRI LI-RADS diagnostic categories	3
Could real-time ultrasonography guidance be useful for the effective deployment of FemoSeal in common femoral arteriotomy?	3
Intra-individual comparison of liver stiffness measurements by magnetic resonance elastography and two-dimensional shear-wave elastography in 888 patients	3
Speckle tracking ultrasonography as a new tool to assess diaphragmatic function: a feasibility study	3
Overcoming the limitations of screening mammography in Japan and Korea: a paradigm shift to personalized breast cancer screening based on ultrasonography	3
Quantifying carotid stiffness in a pre-hypertensive population with ultrafast ultrasound imaging	3
Foot pain in children and adolescents: a problem-based approach in musculoskeletal ultrasonography	3
Severity of hyperechoic pancreas on ultrasonography as a risk factor for glycemic progression	3
Does transperineal ultrasound predict the risk of perineal trauma in women with term pregnancy? A prospective observational study	3
Reproducibility and diagnostic performance of the vascular index of superb microvascular imaging in real-time breast ultrasonography for evaluating breast masses	3
Thrombus stiffness as an independent predictor of endovascular treatment success in hemodialysis fistulas: a study using ultrasound elastography	3
Focal liver lesions: interobserver and intraobserver agreement of three-dimensional contrast-enhanced ultrasound-assisted volume measurements	3
Feasibility of a deep learning artificial intelligence model for the diagnosis of pediatric ileocolic intussusception with grayscale ultrasonography	3
Washout-parametric imaging with Sonazoid for enhanced differentiation of focal liver lesions	3
Stress distribution analysis in healthy and stenosed carotid artery models reconstructed from in vivo ultrasonography	3
Erratum: Noninvasive assessment of hepatic steatosis using a pathologic reference standard: comparison of CT, MRI, and US-based techniques	3
Recognition and appreciation of our peer reviewers: honoring the 2024 best reviewer awards	3
Combined use of shear-wave elastography and Doppler ultrasonography in equivocal fibroepithelial lesions of the breast diagnosed by core needle biopsy	3
Value of Doppler ultrasonography in predicting clinical outcomes for patients with acute cellular rejection after liver transplantation	3
Scale-attentional U-Net for the segmentation of the median nerve in ultrasound images	3
Unexpected hyperechoic lesions of the breast and their correlations with pathology: a pictorial essay	3
Erratum: Comprehensive ultrasonographic evaluation of normal and fibrotic kidneys in a mouse model with an ultra-highfrequency transducer	3
Prevalence and characteristics of vagus nerve variations on neck ultrasonography	3
High-spatial-resolution, instantaneous passive cavitation imaging with temporal resolution in histotripsy: a simulation study	3
Ultrasound findings of subpial hemorrhage in neonates	3
Role of Doppler US and elastography prior to biopsy to identify candidates for avoidance of surgery following neoadjuvant chemotherapy for breast cancer	3
Shaping the future of <italic>Ultrasonography</italic>: bimonthly publication and global growth	3
Do ACR TI-RADS scores demonstrate unique thyroid molecular profiles?	3
Pulmonary artery stiffness in fetuses with tetralogy of Fallot	3
Re: Additional treatment of recurrent or regrowing cystic thyroid nodules after ethanol ablation	3
Adaptive singular value decomposition filtering of high-intensity focused ultrasound interference enables real-time ultrasound-guided therapy	2
Percutaneous ablation of liver metastases from colorectal cancer: a comparison between the outcomes of ultrasound guidance and CT guidance using propensity score matching	2
Extratendinous migration of calcific tendinitis of the rotator cuff: imaging findings and clinical characteristics with temporal changes	2
Diagnosis of parathyroid incidentaloma detected on thyroid ultrasonography: the role of fine-needle aspiration cytology and washout parathyroid hormone measurements	2
Orientation of the ultrasound probe to identify the taller-than-wide sign of thyroid malignancy: a registry-based study with the Thyroid Imaging Network of Korea	2
Ultrasonography: celebrating 10 years of progress and opening a new chapter in 2024	2
Liver stiffness quantification in biopsy-proven nonalcoholic fatty liver disease patients using shear wave elastography in comparison with transient elastography	2
Triaging deep vein thrombosis using ultrasonography after lower-extremity orthopedic surgery: analysis of a single-center experience	2
Comparison between conventional duplex ultrasonography and the dual-gate Doppler mode for hemodynamic measurements of the carotid arteries	2
Approach to the postnatal sonographic evaluation of prenatally detected abdominopelvic cysts	2
Characterization of non-alcoholic fatty liver disease–related hepatocellular carcinoma on contrast-enhanced ultrasound with Sonazoid	2
Diagnostic performance of ultrasound risk stratification systems on thyroid nodules cytologically classified as indeterminate: a systematic review and meta-analysis	2
Therapeutic efficacy of low-dose steroid combined with hyaluronidase in ultrasonography-guided intra-articular injections into the shoulder for adhesive capsulitis	2
Using ultrasound shear wave elastography to characterize peripheral nerve mechanics: a systematic review on the normative reference values in healthy individuals	2
Diagnostic performance of multimodal large language models in radiological quiz cases: the effects of prompt engineering and input conditions	2
Renal elastography measurements in children with acute glomerulonephritis	2
Effects of hepatic fibrosis on the quantification of hepatic steatosis using the controlled attenuation parameter in patients with chronic hepatitis B	2
The new definition of metabolic dysfunction-associated steatotic liver disease: the role of ultrasound and elastography	2
Ultrasonography of acute retroperitoneum	2
Toward acquisition protocol standardization for estimating liver fat content using ultrasound attenuation coefficient imaging	2
Contrast-enhanced ultrasound Liver Imaging Reporting and Data System category M: a systematic review and meta-analysis	2
Subcategorization of intermediate suspicion thyroid nodules based on suspicious ultrasonographic findings	2
The learning curve and difficult points of the O-RADS ultrasound risk stratification system in 54 trainees	2
Severity of hyperechoic pancreas on preoperative ultrasonography: high potential as a clinically useful predictor of a postoperative pancreatic fistula	2
Value of contrast-enhanced ultrasonography in microwave ablation treatment of symptomatic focal uterine adenomyosis	2
Ultrasound evaluation of clinical mimics of deep vein thrombosis: essential insights for radiologists in interpretation	2
Second-line Sonazoid-enhanced ultrasonography for Liver Imaging Reporting and Data System category 3 and 4 on gadoxetate-enhanced magnetic resonance imaging	2
Follow-up of benign thyroid nodules confirmed by ultrasound-guided core needle biopsy after inconclusive cytology on fine-needle aspiration biopsy	2
Synchronous tele-ultrasonography is helpful for a naive operator to perform high-quality thyroid ultrasound examinations	2
What is the difference between the tall cell variant and the classic type of papillary thyroid carcinoma on ultrasonography?	2
Ultrasound-guided ethanol ablation for cystic thyroid nodules: effectiveness of small amounts of ethanol in a single session	2
Diagnostic performance of quantitative ultrasonography for hepatic steatosis in a health screening program: a prospective single-center study	2